dataset string | id string | question string | choices list | rationale string | answer string | subject string |
|---|---|---|---|---|---|---|
mmlu_stem | mmlu_stem_15704 | Not everyone has a chance to be a detective , but I got one when I was 13 years old. It happened in 1994. One afternoon, I was walking down the street when I saw my father's new car. I expected to see my father in the driver's seat. But to my surprise, I saw a young woman driving instead, "She has stolen my father's car," I thought. So I quickly stopped a taxi and got in. I said to the driver, "Follow that new car in front," I told him why. The taxi driver had a car phone, so I asked him to call the police. Soon we heard the sound of a police car. The police told the woman to stop the car using a loudspeaker. The taxi came to a stop, too. I got out right then and said to the woman, "This is not your car. It's my father's car." The woman smiled and said, "Oh. You're Mr. Johnson's son, right? I've seen your photo in your father's office." Before I could say one word, the woman explained that she was my father's new assistant . My father had asked her to take his computer to the shop to have it repaired. He lent her his car. After hearing this, I called my father and he told us what the woman said was right. The police and the taxi driver laughed. I felt very sorry. It was both the first time and the last time I worked as a detective. When did the story take place? | [
"Thirteen years ago.",
"Twenty years ago.",
"Thirty years ago.",
"Before 1994."
] | null | B | |
mmlu_stem | mmlu_stem_13644 | News 1 Yuan Longping, the father of hybrid rice, won the World Food Prize on Monday. Yuan developed the world's first popular and widely known hybrid rice. Hybrid rice plants can make more rice than regular ones. News 2 Have you ever got angry at books that are full of mistakes? Don't worry, things will get better soon. Last week, China started checking textbooks, dictionaries and children's books all over the country. The government said the results of the check would come out at the end of June. News 3 People will see a new "star" in the sky soon. China plants to send a satellite into space by December 2006.It will stay in space for one year. It will go around the moon and take pictures. It must be very expensive, right? That's for sure; 1.4 billion yuan! News 4 Have you ever thought of being able to fly around the world in a few hours? One day, maybe you can. Last Saturday, the American X-43A airplane made its first flight. It reached a speed of 8,000 kilometers per hour. This makes it the fastest plane in the world.X-43A is only three to four meters long, but it's very heavy. It weighs 1,270 kilograms. The speed of the fastest plane in the world is _ . | [
"1.4 kilometers per second",
"43 kilometers per minute",
"1,270 kilometers per hour",
"8,000 kilometers per hour"
] | null | D | |
mmlu_stem | mmlu_stem_18096 | The heart, veins, arteries, and capillaries make up which organ system? | [
"reproductive",
"muscular",
"excretory",
"circulatory"
] | null | D | |
mmlu_stem | mmlu_stem_4615 | Alexi s Vaughan,17,sat tiredly in the passenger seat of her dad's car.The early Saturday morning run with her father,Michael,was part of the punishment.She stared sadly out of the window at the cornfields. An experienced hunter,Alexis let her eyes lazily search for wildlife.She was shocked when a deer came into view about 200 yards in front of them.Mule deer never appeared in plain sight ten days before hunting season.It was a buck--a male deer with sharp,three-pronged antlers . Suddenly Alexis heard a scream and saw an arm fly up near the deer's head.She realized the buck was attacking a woman.Sue Panter had been Out for her morning run.The deer had appeared from the tall corn and begun following her.Having lived in the countryside of Idaho for years,Sue knew that most deer got frightened by humans.But this deer moved closer,even when she threw a handful of small stones at it. "I knew I was in trouble,"she says. The buck rushed forward,lifted her up with its antlers and threw her into the air. Sue could feel the antlers made small holes in her leg and blood ran down her leg. When the Vaughans pulled up,the buck was throwing Sue like a rag doll. Before her father had stopped the car,Alexis rushed out of the car and down the slope toward the buck."1 was kicking and hitting it hard with my fists to get its attention so that It will leave the woman,"she says.However,the animal was not frightened at all.Then Michael pushed the buck away from the woman by the antlers. Alexis helped Sue up the slope and into the Vaughans'car.Then she tied a tourniquet to Sue's right leg.Her neck was cut.Then she heard her father shout loudly. Michael had been knocked to the ground,his right leg seriously cut by the buck. Alexis took a hammer from the car and ran to where Michael lay on his back in the dirt.She beat the buck's head and neck,but the blows didn't frighten it away."I was losing faith,"she says. "A couple more strikes,Alexis,"said Michael."You can do it."Alexis closed her eyes and hit with all her strength at the deer's neck with the hammer. When she opened her eyes, the deer was running away. A1exis got in the driver's seat and sped toward the hospital in Franklin,hearing her dad's breathing grow difficuIt and unsmooth as the blood from his wounded leg had flowed through the T--shirt he'd wrapped around it.In the backseat,Sue looked unconscious. After doctors treated Sue and Michael,Sue tearfully thanked her rescuers." _ How did Alexis help Sue soon after she ran out of the car? | [
"By trying to bring the buck's life to an end.",
"By frightening the buck to run away down the slope.",
"By trying to draw the buck's attention away from Sue.",
"By pushing the buck away from Sue by the antlers."
] | null | C | |
mmlu_stem | mmlu_stem_14581 | In our town, there is a big zoo with a lot of animals in it. There are some beautiful tigers and two old lions. They eat a lot of meat every day. There are also two big elephants and one baby elephant. The elephants are kind animals. They eat a lot every day. They like children. Children often give them bread and bananas. Elephants like bananas best. In our zoo there are also brown bears , black bears and white bears. They stand on their hind legs,hold up their fore legs and ask for food. They like cakes very much. There's also a children's corner in our zoo. Children ride horses and donkeys and watch the monkeys there. The monkeys are very funny. They climb up ropes and jump down again and play with each other(,) like small children. ,. Which animal plays like small children? | [
"Monkeys.",
"Tigers.",
"Bears.",
"Lions."
] | null | A | |
mmlu_stem | mmlu_stem_8628 | Our risk of cancer rises rapidly as we age. So it makes sense that the elderly should be routinely screened for new tumors or doesn't it? While such tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly. With the percentage of people over age 65 expected to nearly double by 2050, it s important to weigh the health benefits of screening against the risks and costs of routine testing. In many cases, screening can lead to additional examinations and operations to remove cancer, which can cause side effects, while the cancers themselves may be slow-growing and may not cause serious health problems in patients' remaining years. But the message that everyone must screen for cancer has become so ingrained that when health care experts recommended that women under 50 and over 74 stop screening for breast cancer, it caused a noisy reaction among doctors, patients and social groups. It's hard to uproot deeply-held beliefs about cancer screening with scientific data. Certainly, there are people over age 75 who have had cancers detected by routine screening, and gained several extra years of life because of treatment. And clearly, people over age 75 who have other risk factors for cancer, such as a family history or previous personal experience with the disease, should continue to get screened regularly. But for the rest, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy. A recent study suggests that doctors start to make more objective decisions about who will truly benefit from screening--especially considering the explosion of the elderly. It's not an easy calculation to make, but one that makes sense for patients. Dr. Otis Brawley said, "Many doctors are ordering these tests purely to cover themselves from medical disputes. We need to think about the wise use of health care, which means making some difficult decisions with elderly patients, and going against the misguided belief that when it comes to health care, more is always better." Why do many doctors advise routine screening for cancer? | [
"They want to take advantage of the medical care system.",
"They want to protect themselves against medical disputes.",
"They want data for medical research.",
"They want their patients to suffer less."
] | null | B | |
mmlu_stem | mmlu_stem_6349 | Soon, you' re going to have to move out!" cried my neighbor upon seeing the largest tomato plant known to mankind, or at least known in my neighborhood. One tiny 9-inch plant, bought for $1. 25 in the spring, has already taken over much of my rose bed, covering much of other plants, and is well on its way to the front door. Roses require a good deal of care, and if it weren't for the pleasure they give, it wouldn' t be worth the work. As it is, I have a garden full of sweet-smelling roses for most of the year. Bushes must be pruned in early spring, leaving ugly woody branches until the new growth appears a few weeks later. It was the space available in the garden that led me into planting just one little tomato plant. A big mistake. Soil conditions made just perfect for roses turn out to be even more perfect for tomatoes. The daily watering coupled with full sun and regular fertilizing have turned the little plant into a tall bush. The cage I placed around it as the plant grew has long disappeared under the thick leaves. Now the task I face in harvesting the fruit is twofold. First, I have to find the red ones among the leaves, which means I almost have to stand on my head, and once found I have to reach down and under, pick the tomatoes and withdraw my full fist without dropping the prize so dearly won. I found two full-blown white roses completely hidden as I picked tomatoes in June. But they were weak and the leaves already yellow for lack of light. Here I am faced with a painful small decision: To tear up a wonderful and productive tomato plant that offers up between ten and twenty ripe sweet tomatoes each day or say goodbye to several expensive and treasured roses. Like Scarlett in Gone With the Wind, I' ll think about that tomorrow. The writer planted the tomato plant because . | [
"there was room for it in the garden",
"the soil was just right for it",
"it cost only $1. 25",
"the roses' branches needed to be covered"
] | null | A | |
mmlu_stem | mmlu_stem_2296 | Which of these is the main function of a cell wall? | [
"To make food",
"To store water",
"To provide support",
"To make the plant green"
] | null | C | |
mmlu_stem | mmlu_stem_10299 | Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case. The ridge structure on a person's fingers does not change with growth and is not affected by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take. Finger-prints can be made very easily with printer's ink. They can be recorded easily. With special methods, identification can be achieved successfully within a short time. Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case. A suspected man may deny a charge but this may be in vain. His finger-prints can prove who he is even if his appearance has been changed by age or accident. When a suspect leaves finger-prints behind at the scene of a crime, they are difficult to detect with the naked eye. Special techniques are used to "develop" them. Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained. It is _ for a criminal to deny his crime when finger-prints are used to identify him. | [
"worth trying",
"successful",
"useful",
"useless"
] | null | D | |
mmlu_stem | mmlu_stem_4586 | Have you ever stayed up late? If so, you know that not getting enough sleep can leave you tired and grumpy . Not sleeping enough can also make it harder to think clearly the next day. Sleep experts have long known that getting a good night's sleep is important. It helps kids perform their best during the day. A recent study shows that sleep helps improve problem--- solving skills and creative thinking. For the study, two groups of volunteers answered a math problem. The group that slept for eight hours solved the problem correctly more often than the group that did not get enough sleep. While you sleep, your brain is busy doing its "homework". It sorts out information from your day. Getting enough sleep each night can _ your brainpower. That will help you do your best in school. Experts say that, in return, can lead to better grades. What is the best title for the passage? | [
"Too Much Sleep",
"It's Homework Time",
"Sleep to Succeed",
"Math Problems"
] | null | C | |
mmlu_stem | mmlu_stem_19374 | A flower may consider its entire point in living to be | [
"propagating the animal kingdom",
"making new flowers bloom",
"feeding bees and making honey",
"spreading its genetic components around"
] | null | D | |
mmlu_stem | mmlu_stem_21099 | A woman looking through binoculars is watching something | [
"distant",
"near",
"close",
"beside her"
] | null | A | |
mmlu_stem | mmlu_stem_9541 | Books, software, and videos, no matter what you are looking for, if you turn on a computer and log on the Internet, you are sure to find something. E-books are all over the Internet; some are free, and some are not. E-books are basically electronic books you can read without having to carry heavy books and flip through all the pages. Now authors not only sell regular books in bookstores but also sell e-books on the Internet. Some e-books are sold on CDs, too. You can get all types of software right from the Internet. After you download it, you have it. It is so convenient that you can get it even without leaving the house. These are the advantages we have in today's high-tech world. We can find videos of different people. There are so many websites with videos that it would take you some time to actually go through them all. The cool thing about videos is that some people have their own websites or their own spaces where they can upload videos of their families or of different events and allow other people to view them. It is amazing. The Internet is an exciting place and it plays a big part in our lives today. You can even pay your bills on the Internet if that's what you want to do. The marketing industry is also doing a lot better because of the Internet. Companies can communicate very quickly with each other over the Internet. The purpose of the passage is to _ . | [
"suggest that people start reading e-books on the Internet",
"advise people to form good computer habits",
"discuss problems people have online",
"introduce many uses of the Internet"
] | null | D | |
mmlu_stem | mmlu_stem_15425 | Elephants have very strong legs.Their legs are like trees.They usually walk slowly because they are so big,but they walk very quietly. Wild elephants living in the jungle usually stay together in big families.Usually one old elephant leads them.The others follow their leader.They usually move about at night,looking for food.In the hot daytime,they go to sleep in the cool shade of the trees.Elephants are kind animals.When one of them is hurt and cannot pull itself to its feet,the other elephants lift it up and help it to walk. Some people say that elephants never forget.They remember people who are kind or bad to them.There are many about this. If you hurt an elephant,what may happen when you meet it again five years later? | [
"It may not remember you and walk away.",
"It may kick you,or do something to hurt you.",
"It may eat the food you give it.",
"It may let you take photos with it."
] | null | B | |
mmlu_stem | mmlu_stem_16940 | A group of frogs were travelling through the woods. Two of them, Nick and Jack, fell into a deep pit . All the other frogs gathered around the pit. When they saw how deep the pit was, they told Nick and Jack that they were as good as dead. Nick and Jack ignored what the other frogs said and tried to jump up out of the pit with all of their strength. The other frogs went on telling them to stop, and that they were as good as dead. Nick listened to them and gave up. Finally, he fell down and died. Jack continued to jump as hard as he could. Once again, the frogs around the pit shouted at him to stop the pain and just die. Jack jumped even harder and finally got out. When he was out, the other frogs asked, "Did not you hear us?" Jack explained to them that he was deaf. He thought they were encouraging him all the time. Nick and Jack fell into a pit when they were _ . | [
"holding a meeting",
"taking exercise",
"travelling through the woods",
"sleeping in the woods"
] | null | C | |
mmlu_stem | mmlu_stem_14700 | As soon as the woman got into the house, her eight-year-old daughter told her that her younger brother drew so many pictures on the clean wall of his bedroom and left the white wall in a mess. When the woman heard this, she was angry. "Where's your brother now?" "He's hiding himself in the cupboard in his bedroom." The little girl answered. The woman got even angrier. She complained about her son when she went towards her son's bedroom. The six-year-old boy was staying with fear in the cupboard when he heard what his mother said. He knew she got really angry this time. The woman pushed the door open with a loud noise. But when she saw the words and pictures on the wall, her anger soon disappeared. "I love you, mum!" covered the whole wall, with so many hearts around them, and so many stars in the sky. The mother's eyes were full of happy tears. She opened the door of the cupboard, and hugged her son tightly. The boy said "I love you, Mum!" to her mother in a low voice when he was in his mother's arms. It's the most expensive present from her son -- "Love on the wall". Eight years later, the boy suddenly died of heart disease. The mother had kept the wall tidy with great care for nearly fifty years until she was dead. In the mother's heart, it seemed that her son was alive, and always looking at her in the sky with many shining stars around him. The boy died at the age of _ . | [
"six",
"eight",
"fourteen",
"Sixteen"
] | null | C | |
mmlu_stem | mmlu_stem_2109 | Which form of energy is found in food? | [
"chemical",
"electrical",
"sound",
"mechanical"
] | null | A | |
mmlu_stem | mmlu_stem_11272 | Whether it's for a hobby or profession, photography has always been highly valued. Photography has been around for over a hundred years, but what has recently revolutionized it is digital photography. A digital camera looks like a film camera, but it works differently. A digital camera takes pictures or a video by using a CCD sensor instead of film. The data about the images are electronically saved on a flash card. Later on, the flash card can be removed from the camera and put into a card reader. The card reader can be plugged into a computer's USB port. The images and videos can then be saved on a computer for viewing, editing, emailing, or printing. Digital photography received a great deal of criticism in its beginning stages, but with its continued development, it is now capable of producing images of a quality that is similar to. or even better, than that of film photographs. However, what really makes digital photography attractive is its convenience and low cost. Instead of having to go to a lab and waiting to get pictures developed to see what they look like, you can always view the images or-video on the LCD screen that is on the back of the camera. Not only does this feature save time, but it also prevents common mistakes like using a wrong exposure( ) that could ruin an image or video. With the usage of computer programs like Photoshop, more serious photographers can edit their images without the expense of a darkroom. Digital photography is also friendlier to the environment, as harmful chemicals that are needed in the development of film are not used in digital photography. Printing only the best pictures and not having to buy film make digital photography much cheaper. Which is NOT a reason why digital photography is eco-friendly? | [
"Harmful chemicals are not needed in developing pictures.",
"Pictures are printed with a computer instead of films.",
"Photographers don't have to work in a darkroom.",
"Digital cameras produce pictures as good as film cameras."
] | null | D | |
mmlu_stem | mmlu_stem_15788 | Recently hand-foot-mouth disease has spread across China. In the past three months, there have been about 41,846 cases in 30 provinces and regions. The number is increasing. Eighteen Chinese children have died of the disease so far this year. What causes the disease and why is it dangerous? Hand-foot-mouth disease is a common childhood illness. It mainly affects children under the age of 10. It gets its name from the rash that develops on the hands and feet. It can also cause blisters in your mouth. A child who has the disease will usually have a fever, a runny nose and sore throat. He or she doesn't want to eat or drink because of pain in the mouth. Hand-foot-mouth disease is mostly not serious. The fever and rash clear within a few days. But in some cases, the virus affects the heart, lungs or brain. This puts the child's life in danger. A virus causes hand-foot-mouth disease. The disease spreads easily where a lot of young children are together, such as in a child-care center. Sometimes it can also affect teenagers and adults. In order not to pass on the virus, good hygiene is important. We should wash our hands as often as possible. Especially we should wash our hands before meals and after going to the toilet. More than _ people have caught hand-foot-mouth disease this year. | [
"thirty thousand",
"forty thousand",
"four million",
"fourteen thousand"
] | null | B | |
mmlu_stem | mmlu_stem_17389 | Otto pushed a toy car across a floor. The car traveled fast across the wood, but it slowed to a stop on the carpet. Which best explains what happened when the car reached the carpet? | [
"Inertia decreased.",
"Gravity increased.",
"Friction increased.",
"Magnetism decreased."
] | null | C | |
mmlu_stem | mmlu_stem_17419 | What is determined by the speed that Earth rotates on its axis? | [
"the length of a day",
"the energy that reaches a location",
"the temperature of water in the ocean",
"the number of seasons in a year"
] | null | A | |
mmlu_stem | mmlu_stem_15807 | Do you often play with your pet dog or cat? Do you like touching animals like rabbits? They are cute. But someimes they may bite you. Then you could get a terrible disease--rabies. In China, 2,245 people got rabies in the first nine months of 2007. In September, 318 people died of rabies. Dogs, cats, rabbits and bats may have rabies. If they bite or scratch someone, the virus of rabies could go into the person's body. The person could even die. It's important to get the right _ very soon. Every year, more than 50,000 people aound the world die of rabies. Most of them are from poor countries. India has the most death . China is the second. ,. _ people in China died of rabies in September, 2007. | [
"2,245",
"318",
"232",
"50,000"
] | null | B | |
mmlu_stem | mmlu_stem_19179 | Which is a complete circuit? | [
"a refrigerator that is running",
"a battery removed from a toy",
"a clock that is wound-up",
"a fuse that has blown"
] | null | A | |
mmlu_stem | mmlu_stem_9510 | Wilderness activity week, Finland Set off on a really wild adventure to Finland, where night is a distant memory during the endless days of summer. From your cottage, set high in the hills above Koli National Park, you can explore a perfect wilderness, and pull over at a lakeside beach whenever you like a dip . Horseriding in the Tarn France Learn to ride, or perfect your horse-riding skills at Les Juliannes in the Tarn Valley. Activities include everything from show-jumping to hacking through the rolling hills and medieval villages. Between sessions, you can relax by the pool, cycle along the country lanes or roam the grounds. Guests stay at a rural 17th-century farmhouse. Learn to sail in Greece Sunvil Sailing has live-aboard learn-to-sail breaks off the island of Lefkas that are designed for both the complete novice as well as those with a degree of sailing. How much would a family of two adults and a ten-year-old boy pay altogether if they join in Horseriding in the Tarn, France? | [
"PS2030",
"PS1316",
"PS1869",
"PS1211"
] | null | C | |
mmlu_stem | mmlu_stem_6955 | Dogs have an amazing sense of smell thanks to 300million smell receptors in their noses, compared to only five million in the human nose. Medical dogs are trained by smelling samples of people already diagnosed with cancer and those of people without the disease so they can learn to tell the difference. Dr Claire Guest began training her dog Daisy to smell out the killer disease in urine and breath samples when she was young. So far Daisy has found cancer in 551 patients, of which 93 per cent were accurate. And she discovered Dr Guest's breast cancer before it was diagnosed- the first time she has discovered the disease actually growing in someone's body, rather than by smelling a sample. Dr Guest, 50, chief executive of charity Medical Detection Dogs, said: "She pushed against my body with her nose repeatedly - I pushed her away, but she pushed against me again, clearly upset. She pushed me so hard that it hurt me. "Her behaviour was totally out of character - she was normally such a happy dog ... I felt the tender area where she'd pushed me, and over the next few days I discovered the tiniest lump . "If it wasn't for Daisy it would have gone hidden for much longer and could have been more serious," Dr Guest added. "My own pet labrador saved my life." Animal rescue charity Blue Cross presented Daisy with a medal for her achievements. She faced tough competition, including JJ, a bomb detection dog who has saved soldiers' lives in Afghanistan. Steve Goody, the charity's deputy chief executive, said: "Cancer affects the lives of thousands of people and Daisy has made a huge contribution to the diagnosis and early treatment of cancers - she's a very deserving medal _ t." Daisy is now helping to train a team of 12 dogs at Medical Detection Dogs and is a 'senior consultant' for the UK's first ever trial using dogs to discover breast cancer. How did Daisy discover Dr Guest's cancer? | [
"By smelling the urine sample.",
"By smelling the breath sample.",
"By smelling the hidden cancer.",
"By pushing Dr Guest hard."
] | null | C | |
mmlu_stem | mmlu_stem_3157 | Humans: It's time to abandon the earth or face extinction. This prediction isn't science fiction. It's a glimpse of the future, according to famed British scientist Stephen Hawking. "I see great dangers for the human race," he said in an interview with global forum Big Think. "There have been a number of times in the past when its survival has been a question of touch and go ." Hawking says humans must _ our home planet within the next two centuries and expand into space to survive. "I believe that the long-term future of the human race must be in space," he said. "It will be difficult to avoid disaster on our planet Earth in the next hundred years, let alone the next thousand, or million." He also voiced some concerns about the future of life on the earth. In April, he spoke about his fear of aliens in an interview for the Discovery Channel. "If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said. "Such advanced aliens would perhaps become wanderers, looking to conquer and colonize whatever planets they can reach." But Hawking says he is still hopeful for the future of humanity. "I'm an optimist," he told Big Think. "We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space." Getting to another planet will prove a challenge, not to mention colonizing it for humanity. University of Michigan astrophysicist Katherine Freese told Big Think that "the nearest star to Earth is Proxima Centauri which is 4.2 light years away. That means, if you were traveling at the speed of light the whole time, it would take 4.2 years to get there" --- or about 50,000 years using current rocket science. How long will it take to reach Proxima Centauri by current rocket? | [
"About 4.2 years.",
"About 50,000 years.",
"Less than 42,000 years.",
"Over 10 years."
] | null | B | |
mmlu_stem | mmlu_stem_8097 | When you think of all the ways your body can get hurt---falling off a bike, stepping on a nail, being bitten by a crazed dog---the aches and pains that come from sitting at a computer may not seem like much. But more doctors are getting worried about just that. If you sit at a PC the wrong way, the nerves and muscles in your back, neck and arms can get out of line. _ is the study of how people work and how jobs and equipment can be designed so that people are safer and more comfortable in the things they do---whether that's working on a factory assembly line or sitting in front of a computer. The monitor You should not have to tilt your neck up or down to lock at the screen. Your eyes should be level with the top of the screen. How far away should you sit? Reach your arm out so your fingertips just touch the screen. The keyboard It should be directly in front of you. Don't unfold the legs on the bottom of the keyboard so that it tilts up toward you---it should be as flat as possible, or even tilted away from you. You want your wrists "neutral," which means straight, not bent. This puts less strain on your nerves and muscles. Arms should be close to the body. Don't look at your fingers as you type. Use a document holder to hold papers at the same level as the monitor. Keep the mouse on the same level as the keyboard and close by--- so you don't have to reach for it. The chair Your feet shouldn't dangle---the blood will pool in your feet. They should rest flat on the floor, or on phone books, if necessary. Your back needs support. Roll up a towel and stick it there. The Body If you think of your body as a collection of right angles when you sit at a computer, you should be just fine. Your hips should be at a 90-degree angle to your back. That takes the pressure off the spine. And your knees should bend at a 90 degree angle so your feet are flat. The passage mainly talks about _ . | [
"avoiding pains caused by using PC",
"the science of ergonomics",
"illness caused by a computer",
"how to keep fit"
] | null | A | |
mmlu_stem | mmlu_stem_8477 | prefix = st1 /Britainis facing a sharp rise in its rat population as growing numbers of people leave fast food scraps in the street , an environment group warned . Keep Britain Tidy said the rodents were stopping their traditional hunts underground and were roaming the streets ,tempted by discarded burgers ,pizzas and crisps. "The rat population is on the rise and soon it'll be as common to see a rodent on our street as it is to see a dog or a cat," said group Director ,Sue Nelson. The practice of dumping fast food litter and scraps on the street rather than in the trash-with young men the worst offenders-was behind the rise. According to the National Rodent Survey in 2005, Britain's rat population has grown by nearly one quarter since 2000 and is now estimated at 60 million , two million more than the human population. On average a rat can give birth every 24--28 days and just a single pair of rats can produce a colony of 2,000 a year. Around 200 people a year get Weil's Disease----an infection which can lead to liver or kidney failure and eventually death and which is arrived in rat's waste. To highlight the issue , Keep Britain Tidy launched a cinema ad entitled "How close do you want them to get?" The advertisement gave a shocking image of a young woman sleeping in a bed of rots, echoing the nightmare scene from James Herbert's classic horror tale The Rats, in which mutant rodents begin to prey on humans. What is the human population now according to the writer? | [
"60 million.",
"58 million.",
"35 million.",
"2 million."
] | null | B | |
mmlu_stem | mmlu_stem_21532 | Which can best be described as hibernation for most amphibians? | [
"a brain dead frog in mud",
"a frog napping for an hour in mud",
"a frog burying itself in mud for months",
"a frog sleeping for the night in mud"
] | null | C | |
mmlu_stem | mmlu_stem_13298 | Come and see the Indian elephants and new tigers from America. The bears are waiting to meet you, and the monkeys from china are waiting to throw things at you. The lovely dogs from Australia are waiting to laugh at you. The giraffes from Zambia are waiting to look down on you. Tickets Adults :$2.00 Children : Over 12: $1.00 Under12: Free Opening time 9:00 am- 4:00pm(from Saturday to Thursday) 10:00am-3:00pm (Friday) Keep the zoo clean! Don`t touch , give food or go near the animals. From the passage we can guess the animal " giraffe" must be very _ | [
"fat",
"tall",
"long",
"ugly"
] | null | B | |
mmlu_stem | mmlu_stem_7575 | After almost 30 years of arguing that a black hole swallows up everything that falls into it, British astrophysicist Stephen Hawking moved backward last week. The world-famous writer of "Brief History of Time" said he and other scientists had got it wrong. "I've been thinking about this problem for the last 30 years, and I think I now have the answer to it," said Hawking. "A black hole only appears to form but later opens up and set free information about what fell inside. So we can be sure of the past and can predict the future." The findings could help solve the "black hole information paradox ", an important puzzle in modern physics. A black hole is an area in space where matter is under such pressure that even light can not escape from its gravitational pull . But, exactly what happens there has long puzzled scientists. Black holes occur when a powerful star burns up its nuclear fuel and gravity forces it to break down in on itself. The great weight of the star's outer layers moves in towards its center. The force of gravity keeps nearly all light from escaping and nothing inside can be seen from the outside. The star actually disappears from the universe into a point of infinite density . That is a place where the laws of general relativity that govern space and time break down. Hawking has devoted most of his life to studying these questions. At the beginning, _ believed the holes were like a "universal vacuum cleaner", sucking up everything in their path. Hawking revolutionized the study of black holes when he proved, in 1976 that, under the strange rules of quantum physics , when black holes form they send out energy and lose mass in the process. In thinking up this so-called "Hawking radiation", the prefix = st1 /Cambridgemathematician also created one of the biggest puzzles in physics. These particles , he said, contained no information about what has been occurring inside the black hole, or how it formed. Under his theory, once the black hole disappears, all the information within it is lost. What would be the best title for the passage? | [
"The Formation of the Black Hole",
"Black Hole Information Paradox",
"Black Hole Mystery",
"The Cause of the Black Hole"
] | null | C | |
mmlu_stem | mmlu_stem_9591 | Mars Was Not Always Bitterly Cold Scientists at the California Institute of Technology (Caltech) have reported evidence that Mars was warmer and wetter long ago than it is today. The Caltech scientists say they have directly _ the temperature of Mars four billion years ago. At least, they established the surface temperature on part of the planet at that time. The researchers say it is the first such evidence to be discovered and presented. The Caltech scientists say carbonate minerals formed on Mars at about eighteen degrees Celsius. They reached the finding after studying a meteorite that had its beginnings near the Martian surface. Today, the average temperature on Mars is sixty-three degrees below zero Celsius. The finding was reported on the website of the National Academy of Sciences. Caltech Assistant Professor Woody Fischer helped to prepare the report. He says eighteen degrees Celsius is not especially cold or hot. He says this makes the finding extremely interesting. Knowing the temperature can give scientists an idea of the climate on Mars long ago. It can also help them decide whether the planet had liquid water. Spacecraft orbiting Mars have shown what appear to be rivers, lakebeds and mineral deposits. These pictures suggest that, at one time, water did flow there. Mars Rover vehicles and other spacecraft have confirmed the information. Caltech Geology Professor John Eiler was another writer of the report. He says knowing the temperature of Mars from long ago provides valuable information. It shows that early in the planet's history, at least part of Mars could support a climate like that of Earth. The meteorite the scientists examined is one of the oldest known rocks in the world. It is called the Allan Hills meteorite. Its name came from the place in Antarctica where it was found in 1984. The meteorite is believed to have blown loose from the Mars' surface when another space rock struck its "home." How did the scientists reach the finding? | [
"By studying Allan Hills meteorite.",
"By using spacecraft orbiting Mars.",
"By studying minerals gathered on Mars",
"By studying a meteorite on the Martian surface."
] | null | A | |
mmlu_stem | mmlu_stem_2415 | One advantage of the Internet is shopping conveniently online for clothes; one disadvantage of the Internet is also shopping conveniently online for clothes. "Nothing fits," said Lam Yuk Wong, a senior in electrical and computer engineering at Rice University. "Everyone says this. They order clothes and they don't fit. People get very unhappy." Wong and her design partner, Xuaner "Cecilia" Zhang, are Team White Mirror, creators of what they call a "virtual fitting room". Their goal is simple and consumer-friendly: to let online clothing shoppers have a perfect fit and a perfect look when shopping every time. Both women are from China, Wong from Hong Kong and Zhang from Beijing. They both order most of their clothing online. They got the idea from their own experience as consumers and from listening to the complaints of friends and relatives. "They say, 'The color is wrong' or 'I got the right size but it still does not fit.' We want to make it like you're in the store trying on the clothes," Zhang said. Using a Kinect developed by Microsoft for use with its Xbox 360 video game player, Zhang scans Wong and turns her image into, in effect, a virtual model, keeping Wong's dimensions , and even her skin and hair color. "We put the clothes on the shopper's 3-D body models and show how they look when they are dressed," Wong said. So far, Wong and Zhang have adapted the software to show dresses and shirts, and they are now working on shorts. Asked if she thought men as well as women might be interested in using their virtual fitting room, Wong said, "I think their wives will care about this, so it will also be important to men." Which of the following shows the process of using the virtual fitting room? | [
"scanning -- trying on clothes -- getting images",
"trying on clothes -- getting models -- scanning",
"scanning -- getting models --trying on clothes",
"trying on clothes -- getting images -- scanning"
] | null | C | |
mmlu_stem | mmlu_stem_5306 | Recently Dr. Cleiman has proved that everyone has a daily energy cycle. During the hours when you labor (work) through your work, you may say that you are "hot". That is true, the time of day when you feel most energetic is when your cycle of body temperature is at its peak . For some people the peak comes during the forenoon . For others it comes in the afternoon or evening. No one has discovered why this is so. Much family quarrelling ends when husbands and wives realize what this energy cycle means and which cycle each member of the family has. You cannot change your cycle, but you can learn to make your life fit it better. "Habits can help," Dr. Cleiman believes. If your energy cycle is low in the morning but you have an important job early in the day, rise before your usual hour, and then you will work better at your low point. Get off to a slow start which saves your energy. Get up with a lazy yawn and stretch . Sit on the edge of bed before putting your feet on the floor. Avoid the troublesome searching for clean clothes by laying them out the night before. Dr. Cleiman did not explain in the passage _ . | [
"how people can make their life fit their cycle",
"whether everyone has a daily cycle or not",
"why people have their energy cycle at different times",
"what will happen in the family if the couple fail to realize which cycle each member has"
] | null | C | |
mmlu_stem | mmlu_stem_1069 | Ice will form on small ponds when the temperature drops below 0°C. Which property of ice is most beneficial to fish living in these ponds? | [
"Ice has a temperature colder than the temperature of water.",
"Ice absorbs sunlight that is reflected by water.",
"Ice traps more pollution than is trapped by water.",
"Ice had a density lower than the density of water."
] | null | D | |
mmlu_stem | mmlu_stem_4454 | Imagine you're at a party full of strangers. You're nervous. Who are these people? How do you start a conversation? Fortunately, you've got a thing that sends out energy at tiny chips in everyone's name tag . The chips send back name, job, hobbies, and the time available for meeting-whatever. Making new friends becomes simple. This hasn't quite happened in real life. But the world is already experiencing a revolution using RFID technology. An RFID tag with a tiny chip can be fixed in a product, under your pet's skin, even under your own skin. Passive RFID tags have no energy source-batteries because they do not need it. The energy comes from the reader, a scanning device ,that sends out energy (for example, radio waves)that starts up the tag immediately. Such a tag carries information specific to that object, and the data can be updated. Already, RFID technology is used for recognizing each car or truck on the road and it might appear in your passport. Doctors can put a tiny chip under the skin that will help locate and obtain a patient's medical records. At a nightclub in Paris or in New York the same chip gets you into the VIP (very important person) section and pays for the bill with the wave of an arm. Take a step back: 10 or 12 years ago, you would have heard about the coming age of computing. One example always seemed to surface: Your refrigerator would know when you needed to buy more milk. The concept was that computer chips could be put everywhere and send information in a smart network that would make ordinary life simpler. RFID tags are a small part of this phenomenon. "The world is going to be a loosely coupled set of individual small devices, connected wirelessly," predicts Dr.J.Reich. Human right supporters are nervous about the possibilities of such technology. It goes too far tracking school kids through RFID tags, they say. We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it. And how many beers accompanied by how many biscuits. When Marconi invented radio, he thought it would be used for ship-to-shore communication. Not for pop music. Who knows how RFID and related technologies will be used in the future. Here's a wild guess: Not for buying milk. The article is intended to _ . | [
"warn people of the possible risks in adopting RFID technology",
"explain the benefits brought about by RFID technology",
"convince people of the uses of RFID technology",
"predict the applications of RFID technology"
] | null | D | |
mmlu_stem | mmlu_stem_5527 | Just one bite of cake that is made with eggs is enough to make John feel very sick. Susan gets a terrible rash whenever she eats anything containing seafood, and David nearly died when he first ate a cookie that included peanuts. David had trouble breathing after he ate the cookie, but his mother knew what to do and she quickly gave him medicine that helped him feel better almost right away. The body's reaction to certain foods can be quite severe, resulting in breathing problems, as in David's case, or loss of consciousness for some. There are many things we eat may cause our bodies to react badly if we have a food allergy . The most common food allergies seem to be related to milk, soy, eggs, wheat flour, peanuts, nuts, and seafood. In fact, these kinds of foods account for 90% of food allergies. According to some studies, the number of children who have a food allergy is growing. But some people now argue that test results might not actually be accurate, so food allergies are not really as common as they may appear. There are three typical ways that doctors test for food allergies. Probably the most accurate way is for a doctor to give a child a food challenge", For this, the doctor watches the child eat small amounts of certain foods to see if the child has an allergic reaction or not. This method is very time consuming so it is used less often than the other two methods: skin tests and blood tests. In a skin test, a doctor puts very small amounts of the parts of the foods that the child may be allergic to under the child's skin, then watches to see if the child's skin reacts to the allergens . In a blood test, doctors take some of the child's blood and add possible allergens to it and then look for chemicals in the blood that indicate a possible allergic reaction. A problem with both the skin test and the blood test is that neither will show how severe an allergic reaction might be. If a test result is positive, the child may have a severe reaction by eating this food, but the child might just as likely only have a slight rash. The test will not show which of these might be the case. Dr. Jennifer Chafen of Stanford University studied 10 years' worth of allergy research to check how accurate the tests are. She found a surprising fact. Skin tests or blood tests given to patients who visited their doctors for treatment of rashes or stomachaches showed that these patients were allergic to certain foods. However, later tests showed that although these patients tested positive, fewer than 50 percent of them actually had blood allergies. So were the results false and can we rely on these test results? The problem might be food intolerance rather than a food allergy. While foodallergies are mainly related to a person's immune system, food intolerance is related to a person's digestive system and the reaction is usually less severe. One of the most common kinds of food intolerance is related to people who have trouble digesting the sugar in products like milk, cheese, and ice cream. Doctors are not sure why the number of cases of food allergies is rising. One factor that may explain part of the problem is our cleaner environment. Most children are exposed to fewer germs these days and some researchers think that for some people, their body's immune system makes work for itself by reacting as if certain foods are harmful. While allergy test results may show false positive results, the tests are still useful and can save lives. Some children lose their food allergies as they get older, so even though doctors do not have a cure for food allergies, sometimes the body finds its own cure. According to the passage, which test gives the most accurate results? | [
"The common allergen test.",
"The food challenge.",
"The blood test.",
"The skin test."
] | null | B | |
mmlu_stem | mmlu_stem_13135 | Many children think mobile phones are cool. They come in fun colours and you can talk with a friend anytime and anywhere. In the USA, more than 90 million people use mobile phones. Many of those people are children. For children, mobile phones are more than phone calls. They are fashionable. Most mobile phone users don't think about the health problems caused by mobile phones. Some scientists say that mobile phones give off radiation that might be bad for users. One recent study shows that mobile phone radiation might raise a person's chance of getting some kinds of cancer. Other scientists say mobile phones are not bad for people's health. They say that they didn't find any link between mobile phone use and cancer. Scientists say that people can protect themselves from mobile phone radiation. One way is to use an earphone, or people can make shorter calls. In the USA, who thinks mobile phones are more than phone calls? | [
"women",
"men",
"scientists",
"children"
] | null | D | |
mmlu_stem | mmlu_stem_14602 | Do you like listening to music? Does all of the music bring happiness to you? Do you know some music is noise? What is noise? Noise is a loud or unwanted sound. It is also called noise pollution. Where is noise from? Noise can be caused by many kinds of machines, such as motorcycles, planes, farm tractors and TVs. And, to some people, rock bands are also noise. What happens to people who live near noisy machines or use them over a period of time? Doctors find that noise pollution can influence both our health and behavior. It can cause high stress levels, hearing loss, sleep problems, and other harmful effects. Scientists use a unit of measure called a decibel to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talk measures between 40 to 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level causes the greatest hearing loss. How do we reduce noise damage? Turn down your music player or wear ear muffs when you are working in a noisy environment. Ear muffs for human can protect against noise pollution. According to the passage, loud noises can . | [
"stop machines",
"cause a loss of hearing",
"improve people's hearing",
"help people to sleep better"
] | null | B | |
mmlu_stem | mmlu_stem_12664 | Suppose a man has a car accident. He is hurt badly and is _ , that is, he can't think, speak, or hear. His family takes him to the hospital. The doctors tell the family that his brain is dead. A machine can make him breathe . Now the patient's family must answer some difficult questions. Should they think he is dead? Should they ask the doctors to use the machine to make him breathe? Sometimes machines can make an unconscious person breathe for years. However if his brain is dead , he will never think, speak, or hear again. Then, should his family ask the doctors not to use the machine and let him die? Someone who is unconscious can't say he wants to die. Can his family say this for him? Some people think this is a good idea. Some think otherwise. Many people are hurt when machines keep a person alive. The unconscious person doesn't know it. Machines only make the family and friends hurt longer. What's the writer's opinion? | [
"An unconscious person is clear about his condition",
"An unconscious person knows that he will die",
"Don't save him if someone's brain is dead",
"When someone's brain is dead, use machines to keep him breathe."
] | null | C | |
mmlu_stem | mmlu_stem_9225 | Like human beings, dogs may catch cold because of cold weather, wet conditions or can also get it from other sick dogs. If a dog has a running nose and watery eyes, coughs or sneezes , then it is quite probable that the dog has caught cold. A dog's cold can get over after a few days without treatment but it totally depends upon the owner to treat it with medications or improve its immune power to get rid of the cold naturally. Following are some of the things you can do if your dog gets a cold. You can improve its immune power by giving it proper nutrient diet. Healthy food can really do wonders. Try to give it food which is either suggested by the vet or is healthy for your pet. Increase the intake of food which is rich in vitamins A, C and E. Keep your dog warm. The best place for your dog in winter is inside your house. Do not keep your dog outside when it is cold and wet. At home you can also keep the dog warm with the help of carpets. This will make him comfortable and help him to recover fast. Increase the fluid intake as it helps a lot. Water can be the best choice but you can also add broth in water which will give your dog strength. Warm water will make your dog more comfortable and will also keep the dog away from the respiratory infections . Steam treatment is considered to be effective in getting rid of cold. It makes the nasal passage wet, which helps proper breathing. Just fill your bathroom with steam and leave your dog inside the bathroom for 15 minutes. Do it nearly 2 to 3 times a day and you will see your dog recovering. These are some of the things you can do to help your dog recover from cold. However, if you are not able to find any improvement in its health, then turn to the vet for help immediately. Take your dog for regular checkups so as to avoid complications . It can be learnt from the text that _ . | [
"a dog's cold can always disappear naturally",
"it's quite easy to make a sick dog recover from cold",
"treating a dog's cold sometimes needs a vet's help",
"cold in dogs won't spread between each other."
] | null | C | |
mmlu_stem | mmlu_stem_15238 | It seems to be strange that there is a blind spot in the eye. Here is an interesting experiment that can make something _ when one eye is open. Make a card about the size of a postcard and write two English letters "L" and "R" on it. "L" is on the left and "R" on the right. First, hold the card about 80 cm away and you can see both the letters. Then close your right eye and look at the letter "R" only with your left eye. And now, as you move the card slowly towards you, you'll find the letter "L" disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed; you'll find the letter "R" disappearing. Why do the letters disappear? It is because there is a blind spot in the eye. When the image of the letter falls on the blind spot, it won't be seen. That's why one of the letters disappears. This passage mainly tells us _ . | [
"there is a blind spot in the eye",
"an interesting experiment",
"where the blind spot is",
"how to find the blind spot"
] | null | A | |
mmlu_stem | mmlu_stem_1947 | Which group consists only of living things? | [
"rabbit, seed, bird",
"seed, bird, wind",
"Volcano, candle, rabbit",
"wind, candle, volcano"
] | null | A | |
mmlu_stem | mmlu_stem_10923 | Space travel is definitely bad for astronauts' bones, reducing their bone density after only a month of weightlessness, according to French research published on Friday. Laurence Vico and his fellow workers at St Etienne University called for more research into the effects of microgravity, after their study of 15 astronauts from the Russian MIR station showed bone loss continued throughout space flights. "Bone loss was especially striking in four astronauts, " the scientists reported in the Lancet Medical Journal. They measured the bone mineral density (BMD) of bones in the forearm and lower leg of the astronauts who had spent one to six months in space. The BMD loss was significant in the tibia of the lower leg, a weight-bearing bone, but barely changed in the radius of the forearm. "Our results indicate the need to investigate not only different bones, but also different areas of the same bone since not all sites of the skeleton are similarly affected by space conditions, " they added. Without gravity the body isn't bearing any weight so there is no need for calcium which makes bones strong, and it becomes empty into the bloodstream. The research team suggested in future scientists should try to determine if the loss of bone density was only on weight-bearing bones on longer flights, also the possible recovery after returning to Earth. What cause the BMD loss to astronauts, according to this passage? | [
"The food they eat in space.",
"The drinks they take in space.",
"The temperature in space.",
"The gravity in space."
] | null | D | |
mmlu_stem | mmlu_stem_4478 | What will power your house in the future? Nuclear, wind, or solar power? According to scientists at the Massachusetts Institute of Technology (MIT) in the US, it might be leaves -- but artificial ones. Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis . Now researchers have found a way to imitate this seemingly simple process. The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts . Similar to natural leaves, it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell, which uses those two materials to produce electricity, located either on top of a house or beside the house. Though the leaf is only about the shape of a poker card, scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. "One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology," said Nocera at a conference of the American Chemical Society. The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf, by contrast, is made of cheap materials, easy to use and highly stable. In laboratory studies, Nocera showed that an artificial leaf prototype could operate continuously for at least 45 hours without a drop in activity. The wonderful improvements come from Nocera's recent discovery of several powerful, new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now, the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides, the device can run in whatever water is available; that is, it doesn't need pure water. This is important for some countries that don't have access to pure water. With the goal to "make each home its own power station" and "give energy to the poor", scientists believe that the new technology could be widely used in developing countries, especially in India and rural China. The main idea of this passage is about _ . | [
"saving energy",
"a mixture of water power and solar energy",
"an invention copying photosynthesis",
"an introduction to the history of artificial leaves"
] | null | C | |
mmlu_stem | mmlu_stem_313 | The main function of the human digestive system is to | [
"break down foods for absorption into the blood",
"exchange oxygen and carbon dioxide in the lungs",
"release energy from sugars within the cells",
"carry nutrients to all parts of the body"
] | null | A | |
mmlu_stem | mmlu_stem_13371 | Bears are found in Asia, Africa and America. They are very strong, with short tails and thick legs. Bears eat almost everything. They seem to enjoy meat, vegetables, fruit, milk and rice. Bears are not quite dangerous as people imagine them to be. Like most animals, they will try to stay away from human beings. However, bears are not weak animals. Sometimes they kill hunters, for they can be very dangerous. Bears have a good sense of smell but they have poor eyesight. They are also hard of hearing but they are very clever. They feed mainly on roots, frogs, fish and also small insects. They will sometimes kill deer and other large animals, but they seem to like small animals better. In the cold area, bears hibernate, or go to sleep from October to April. Before they start to hibernate, they eat a lot and store fat. The mother bear has its babies, usually two, towards the end of hibernation. A large bear is much cleverer than a cat and most other animals. You may notice at the zoo how cleverly they ask for food. They sit up and hold out their paws. You would have to teach a dog such a trick but the bears learn this by themselves. Which of the following not true? | [
"Bears never kill large animals.",
"Bears are found in many places.",
"Bears have to hibernate in the winter.",
"Bears didn't need to be taught to ask for food"
] | null | A | |
mmlu_stem | mmlu_stem_9215 | When I was a high school student , mathematics looked like a big hurdle for me and several of my classmates.When we reached the ninth class, we got Mr. Iyer, a strict maths teacher who was also our class teacher.He always stuck to his discipline.We had to arrive on time, pay undivided attention to his lectures, and dared not neglect any of h is homework. Even so, as our class teacher, we got to know him better.Noticing some of us fidgeting one day as the mid -term exams approached, he stopped solving a mathematical problem to ask us why." There' s too much to do," we sighed."We're afraid we'll never manage to finish our revision before the exams." "Nothing is impossible," Mr. Iyer told us. "This classroom is on the second floor. Do you have a problem reaching here ?" We reacted with blank stares. "No, you don' t !"he said , answering his own question."You have a staircase to help you climb up to this level.No one expects you to make it in two giant leaps.You simply take one step at a time.Any task can be solved if you focus on the immediate action to be taken.The rest w ill take care of itself, if you keep at it.One step at a time.That' s the secret." Then he wrote down an o ld motto on the blackboard --the longest journey starts with a single step.Having heard his staircase analogy , w e understood why he asked us the question and we saw him in a new light. Most of my classmates scored distinctions in maths.And I went on to become an English teacher.To this day , whenever I pass on Mr.Iyer's invaluable advice to my own students , they brighten up at the prospect of a lighter academic burden. The staircase analogy implies that. | [
"goals can be reached step by step",
"one can reach his/ her goals in a giant leap",
"tasks can be solved under the guide of the teacher",
"there is only one step between success and failure"
] | null | A | |
mmlu_stem | mmlu_stem_7975 | On February 3, a Laysan albatross , a large seabird, named Wisdom, which is 62 years old, hatched a healthy chick on a Pacific island near Hawaii,. It was the sixth year in a row this bird has hatched a chick. Wisdom's species normally lives only 12 to 40 years, while she is able to hatch healthy chicks into her 60s. At breeding time, the Laysan albatross will dig out a shallow nest in the ground. The female then lays a single egg. Both she and her mate will take turns incubating the egg until it hatches. More than seven out of every 10 Laysan albatrosses' nests are on just one island -Midway Atoll. That's Wisdom's home. But her species spends most of its time in the air. In fact, biologists observe that after learning to fly, these birds may not set foot on land for the next three to five years. Albatrosses are powerful gliders , With their six-foot, nearly two-meter, wingspan, Laysan albatrosses can ride wind currents for hundreds of miles or more. Biologists now estimate that Wisdom has flown for an unusually large number of miles-between two million and three million. That is equivalent to traveling from Earth to the moon and back-four to six times! And in the months when these birds are not breeding, they stay in the air, and even sleep there. Wild albatrosses often die long before they come close to Wisdom's age. Some are eaten. Others starve, get sick or suffer life-threatening injuries from people's fishing boats. Clearly, Wisdom is special. She may have raised as many as 35 chicks in her life. What makes Wisdom so special? | [
"She spends most of its time in the air.",
"She has lived more than 100 years.",
"She hatched a healthy chick in her 60s.",
"She hasn't set foot on land for three to five years."
] | null | C | |
mmlu_stem | mmlu_stem_13369 | Bears are found in Asia, Africa and America. They are very strong, with short tails and thick legs. Bears eat almost everything. They seem to enjoy meat, vegetables, fruit, milk and rice. Bears are not quite dangerous as people imagine them to be. Like most animals, they will try to stay away from human beings. However, bears are not weak animals. Sometimes they kill hunters, for they can be very dangerous. Bears have a good sense of smell but they have poor eyesight. They are also hard of hearing but they are very clever. They feed mainly on roots, frogs, fish and also small insects. They will sometimes kill deer and other large animals, but they seem to like small animals better. In the cold area, bears hibernate, or go to sleep from October to April. Before they start to hibernate, they eat a lot and store fat. The mother bear has its babies, usually two, towards the end of hibernation. A large bear is much cleverer than a cat and most other animals. You may notice at the zoo how cleverly they ask for food. They sit up and hold out their paws. You would have to teach a dog such a trick but the bears learn this by themselves. People imagine bears to be _ . | [
"quite harmless",
"very dangerous",
"very safe",
"very clever"
] | null | B | |
mmlu_stem | mmlu_stem_6221 | Women who own cats are more likely to have mental health problems and kill themselves because they can be infected by a common parasite that can be caught from cat litter, a study has found. Researchers found women infected with the Toxoplasma gondii (T. gondii) parasite , which is spread through contact with cat waste or eating undercooked meat or unwashed vegetables, are at increased risk of attempting suicide. The study involved more than 45,000 women in Denmark. About a third of the world's population is infected with the parasite, which hides in cells in the brain and muscles, often without producing symptoms. The infection, which is called toxoplasmosis , has been linked to mental illness, such as schizophrenia , and changes in behavior. The study's senior author Doctor Teodor Postolache, an associate professor of psychiatry at the University of Maryland School of Medicine in the United States, said, "We can't say with certainty that T. gondii caused the women to try to kill themselves, but we did find a predictive association between the infection and suicide attempts later in life that deserves additional studies." Doctor Albert Reece, vice president of medical affairs at the University of Maryland, said, "T. gondii infection is a major public health problem around the world, and many people don't realize they're infected. "Dr Postolache is a leading expert on suicide neuroimmunology . Suicide is a critically important mental health issue. About one million people commit suicide and another 10 million attempt suicide worldwide each year. We hope that this type of research will one day help us find ways to save many lives that now end too early in suicide." Dr. Postolache's research team at the University of Maryland was the first to report a connection between T. gondii and suicidal behavior in 2009. He is cooperating with researchers in Denmark, Germany and Sweden to confirm and investigate the way leading to this association. The T. gondii parasite thrives in the intestines of cats, and it is spread through their waste. All warm-blooded animals can become infected through contact with it. Humans can become infected by changing their infected cats' litter boxes, eating unwashed vegetables, drinking water from a polluted source, or by eating undercooked or raw meat. Not washing kitchen knives after preparing raw meat before handling another food item also can lead to infection. Pregnant women can pass the parasite directly to their unborn babies and are advised not to change cat litter boxes to avoid possible infection. Babies don't produce antibodies to T. gondii for three months after they are born, so the antibodies present in their blood represented infection in the mothers. The scientists studied Danish health patients to determine if any of these women later attempted suicide, including cases of violent suicide attempts which may have involved guns, sharp instruments and jumping from high places. The study found that women infected with T. gondii were one and a half times more likely to attempt suicide compared to those who were not infected, and the risk seemed to rise with increasing levels of the T. gondii antibodies. Dr Postolache noted limitations to the study, such as the inability to determine the cause of the suicidal behavior. The findings were published online in the Archives of General Psychiatry. What can be inferred from the passage? | [
"Women have a higher risk to be infected by the parasite than men.",
"The result of the research may help the scientists to find ways to stop suicide in advance.",
"The scientists will continue their research into the possible connection.",
"The risk of being infected seems to rise with the decreasing levels ... | null | C | |
mmlu_stem | mmlu_stem_658 | Which of these animals has teeth that are most like the teeth of humans? | [
"deer",
"lion",
"monkey",
"dog"
] | null | C | |
mmlu_stem | mmlu_stem_17436 | What is the relationship between tissues and organs? | [
"Organs are made from one type of tissue.",
"Tissues are made from one type of organ.",
"Tissues are made from different types of organs.",
"Organs are made from different types of tissues."
] | null | D | |
mmlu_stem | mmlu_stem_21519 | Which promotes the creation of serotonin? | [
"Jupiter",
"Venus",
"the Sun",
"the Moon"
] | null | C | |
mmlu_stem | mmlu_stem_7108 | A Brown University sleep researcher has some advice for people who run high schools: Don't start classes so early in the morning. It may not be that the students who at their desks are lazy. And it may not be that their parents have failed to enforce bedtime. Instead, it may be that biologically these sleepyhead students aren't used to the early hour. "Maybe these kids are being asked to rise at the wrong time for their bodies," says Mary Carskadon, a professor looking at problem of adolescent sleep at Brown's School of Medicine. Carskadon is trying to understand more about the effects of early school time in adolescents. And, at a more basic level. she and her team are trying to learn more about how the biological changes of adolescence affect sleep needs and patterns. Carskadon says her work suggests that adolescents may need more sleep than they did at childhood, no less, as commonly thought. Sleep patterns change during adolescence, as any parent of an adolescent can prove. Most adolescents prefer to stay up later at nigh and sleep later in the morning. But it's not just a matter of choice -their bodies are going through a change of sleep patterns. All of this makes the transfer from middle school to high school--which may start one hour earlier in the morning ---- all the more difficult , Carskadon says. With their increased need for sleep and their biological clocks set on the "sleep late, rise late" pattern, adolescent are up against difficulties when it comes to trying to be up by 5 or 6 a.m. for a 7:30 a.m. first bell. A short sleep on a desktop may be their body's way of saying. "I need a timeout." What is the test mainly about? | [
"Adolescent heath care.",
"Problems in adolescent learning.",
"Adolescent sleep difficulties.",
"Changes in adolescent sleep needs and patterns."
] | null | D | |
mmlu_stem | mmlu_stem_22519 | What type of aspect can be made from the moving winds? | [
"snow",
"wood",
"bananas",
"electricity"
] | null | D | |
mmlu_stem | mmlu_stem_15493 | Have you ever seen a horse with toes ?Millions of years ago, horses had many toes. They had four toes on each front foot. They had three toes on each back foot. The horses were no bigger than the cats.These small horses lived in the forest. The toes helped the horses run on the soft, wet ground. At first, it was very hot in the forest. But the weather changed. It became very cold. Many trees could not live in cold weather. The trees died and fell. Open fields took the place of forests. The sun made the ground dry and hard. Horsed began to change, too. They began to get bigger. This took a long time. On the dry, hard land, horses needed only their middle toes for running. Their middle toes became hard. After a long time, horses had only one hard toe on each foot. Now we call this hard toe a The main idea of the passage is that _ . | [
"horses had three toes on each back foot.",
"horses lived in the hot forest",
"horses changed a lot over the years",
"horses didn't like the cold weather"
] | null | C | |
mmlu_stem | mmlu_stem_473 | Which of the following is an example of genetic engineering? | [
"Growing a whole plant from a single cell.",
"Finding the sequences of bases in plant DNA.",
"Inserting a gene into plants that makes them resistant to insects.",
"Attaching the root of one type of plant to the stem of another type of plant."
] | null | C | |
mmlu_stem | mmlu_stem_13657 | If your mother wants to tell you something, she uses words. Birds can not talk as we do. But some birds can make sounds to warn their young of danger. They have their own way to make the young birds know or do certain things. The jackdaw is a kind of blackbird that lives in Europe. Jackdaws live together in groups. Young jackdaws do not know their enemies. When the older jackdaw sees a dog, it makes a loud rattling sound. The younger birds know this sound means an enemy is nearby. The sound warns them to know their enemies. If a young jackdaw is in a dangerous place, a jackdaw parent flies over him from behind. The parent bird flies low over the younger bird's back. The parent's tail feathers move quickly from side to side. It is trying to say, "Follow me." At the same time, the parent calls out, "Key-aw, Key-aw." The parent means, "Fly home with me." Young jackdaws do not have to learn what certain sounds mean. They know the meanings of these sounds from the time they are _ . A young jackdaw understands its parents _ . | [
"after it is taught",
"before it is hatched",
"by practicing sounds",
"as soon as it is hatched"
] | null | D | |
mmlu_stem | mmlu_stem_15693 | Hi! I'm Tom.This is my pencil box. It's orange. My ruler is blue and red .It's in the pencil-box. That is a pencil. It's black. It is not my pencil. It's Lucy's. The white eraser is Bob's. I call Bob at 789-6943. It is his telephone number. ? | [
"Tom's ruler is in the pencil box.",
"Lucy's pencil is black.",
"Bob's eraser is blue.",
"The pencil box is Tom's."
] | null | C | |
mmlu_stem | mmlu_stem_5489 | A chip inserted in a young quadriplegic's brain is already improving his quality of life. Soon the benefits may be more widespread. A 25-year-old man unable to move from the neck down recently did what many assumed impossible. After a knife attack that had left him paralyzed, all he could move was his head, which he used to push a switch and call for a nurse. And he could turn his wheelchair by blowing into a straw near his face. That was it. Then last June, a Foxborough (Mass.) company called Cyber Kinetics opened the man's skull and inserted a special chip no larger than a baby aspirin. That insert has given him a few additional and precious abilities. When connected to a special computer via a cable, the chip translates the young man's thoughts into commands that let him move a cursor across a PC screen and open e-mail. He can draw a circle with a computer painting program. And he can use a robotic hook to perform simple tasks like picking up a candy and sliding it across a table. All he has to do is to think. Several new studies have begun or been completed in the past year. In fact, more than half of the scientific papers in this field, called brain-to-computer interaction (BCI), have been published in the past two years, notes Jonathan Wolpaw, a research physician at Wadsworth Center, the New York State Health Dept.'s research laboratory. Brain surgeries are no longer rare: Thousands of Parkinson's disease patients have had special devices inserted in their brains to ease uncontrollable shaking and other symptoms. The inserts themselves have improved, so the body doesn't reject them as furiously . And significant development has been achieved in software used to interpret the brain's signals and change them into commands understood by computers. But increased demand for thought technology remains the biggest reason for the field's progress. Today, 4 million Americans live with paralysis according to the Christopher Reeve Paralysis Foundation. Scientists hope that thought technology will reduce the impact of such disabilities. People with spinal-cord injuries, for example, often lose their ability to walk because the communications network between their brain and their legs has been interrupted. The brain still commands the leg muscles to move, but they don't hear its orders. Thought technology, scientists hope, will bridge this communications gap. "Our goal is for you to see paralyzed people eating at a restaurant and for you not to know that they are paralyzed," says John Donoghue, founder and chief scientific officer at Cyber Kinetics. What plays the most important role in improving the young man's quality of life? | [
"A chip",
"A computer",
"A robotic hook",
"A company"
] | null | A | |
mmlu_stem | mmlu_stem_15892 | Dear Dad and Mom, How are you? I'm happy here, but I miss you very much. It's Sunday today, I don't have any classes. I am writing an e-mail to you in the computer room now. There are lots of students in the computer room. Some students are talking with their friends on QQ. Some students are playing computer games. Some students are watching movies on computers. My new friends, Peter and Bill, are here with me. Peter is buying a T-shirt on the Internet. And what is Bill doing? Oh, he is reading a book on the computer. They're friendly and they often help me with my study and life. When you come to Shanghai, I want you to meet them. I'm OK in Shanghai. Please don't worry about me. I hope you are happy and well. Love, Jenny Where is Jenny now? | [
"At home.",
"In the supermarket.",
"In the library.",
"In the computer room."
] | null | D | |
mmlu_stem | mmlu_stem_20056 | Palm trees use the sun to | [
"swim",
"eat",
"sleep",
"run"
] | null | B | |
mmlu_stem | mmlu_stem_13381 | Hello! I'm Jane. I'm thirteen . I have a sister, but I don't have a brother. I like games. I often play soccer with her. I have 2 volleyballs. I like ping-pong, too. I play ping-pong with my friends after school. Do you like games ? Do you play sports every day ? Who does Jane play soccer with ? | [
"Her sister.",
"Her brother.",
"Her friends.",
"Her classmates."
] | null | A | |
mmlu_stem | mmlu_stem_6993 | Reader Janet Maynard has a lot of young bushes in her garden and is suffering from " _ . So for Janet and anyone else who doesn't want to waste time, effort and water, here are my top tips for keeping plants refreshed in thirsty times. Water in the evening if possible, rather than leaving it till you see things suffer. That way the roots can take up the water in cool soil overnight. Violently jetting hoses mess up the soil structure and may expose delicate roots. Use a rose on a can. Aim low - don't waste water wetting leaves, even though they look pretty and "refreshed". The most valuable and easily damaged plants need the most attention, such as newly planted trees, bushes and climbers. Remove any water-keeping mulch you may have put around the base, then water it thoroughly at least two gallons, slowly. Don't aim your can rose at the stem - which we all usually tend to do. Aim the water in a wide circle so that the whole of the area under the plant is watered. You could even make a channel in the soil right around the plant so that the water is held in place as it soaks in. Replace the mulch. Repeat each week even in showery weather for the first summer. How much water for pots? Fill up the gap between the top of the soil and the top of the pot. Let the water soak right in and then fill it again. Do this daily in hot weather for most summer potted plants. Stand pots in saucers - it makes a big difference. But remember to check that the plants are not sitting in water for days on end when the weather turns wet. Roots will rot. If the fertilizer in pots really dries out, the water may get straight out of the pot without being absorbed. Correct this by standing or floating the pot in a bucket of deep water until it sinks and no bubbles rise. A push-button watering can makes for more efficient watering, and recycled water bottles upside down with a needle which has a hole on the end are useful, too, for pots. Which of the following statements is NOT true according to the passage? | [
"It would be better to water the plant in the evening than in the morning.",
"It's necessary to water newly-planted trees once a week in the first summer.",
"Put potted plants in saucers in case the roots rot in damp weather.",
"Make sure fertilizer in the pot doesn't dry out, otherwise the water would not be... | null | C | |
mmlu_stem | mmlu_stem_7490 | Book into the new prefix = st1 /AucklandHospitalat a typical hour, say 11 on a Saturday night, and you will notice changes in the way you are treated. Let's start with the blood sample taken from your arm as you are wheeled in the door. By the time you are through the security doors and into the emergency area, that sample could have been sent through to the lab by vacuum tube and analysed by a machine which automatically feeds a preparative result into the clinical database. Less than a minute after the sample is processed, the doctors can see the results through the monitors beside every position in the emergency suites. As you are being wheeled in, you may notice cameras in the ceiling. The hospital has spent $4 million on its camera security system to protect staff and patients. When you come to in the neighbouring Admission and Planning Unit, the clinician may be looking at all your records, x-rays and even documents sent in by your GP on a Compaq tablet PC wirelessly connected to the network by an 802.11 "WiFi" card. It's not ideal for viewing images, but it should be good enough for a bedside consultation . If the clinician needs to consult a specialist or your GP, the other party can see the same records from home or office through a secure internet connection. Dr Nigel Murray, general manager of the hospital building programme, said about $30 million of the $500 million budget for the project had been spent on information technology. The passage mainly tell us _ . | [
"high-tech help in first aid",
"computer help in the first aid",
"x-rays help in the hospital",
"camera help in the hospital"
] | null | A | |
mmlu_stem | mmlu_stem_15131 | When an animal helps another animal, it usually gets something valuable in return. For a long time, many scientists thought that only people could act generously just because it feels good. However, a new study in Germany suggests that chimpanzees also do good things for no real reason. And so do children who are as young as 18 months of age. Maybe it is because humans and chimpanzees share an ancestor about 6 million years ago. People and chimpanzees appear to develop such features without any other training, says Warneken, a scientist in Germany. Warneken and his partners worked on adult chimpanzees that live on an island in the African country of Uganda. They also worked with 18-month-old children in Germany. The researchers performed three experiments on the adult chimpanzees and two experiments on the kids. In the first animal experiment,a person tried to reach his arm into a cage to get a stick,but he couldn't reach it. A chimpanzee was in the cage,and it could reach the stick if it wanted to. Thirty-six chimpanzees took part in this experiment one by one, and no chimpanzee saw what the other chimpanzees had done. Even though the animals hadn't met the person before, they usually took the stick and gave it to the person. What's more, they did this whether or not the person offered them bananas as a reward. In a similar experiment, 36 children acted in a similar way. They helped the person reach the stick, whether or not they were offered toys for their help. Researchers did other experiments on chimpanzees and babies. No rewards were offered in either experiment. And still, both the chimpanzees and children went out of their way to help. Still, the new study is different from earlier findings. Researchers have found that chimpanzees don't give rewards of food to other chimpanzees, even if it costs them nothing to be generous. Warneken and his partners worked with _ . | [
"young chimpanzee that live on an island",
"18-month-old children who live in Germany",
"kids who are living with adult chimpanzees",
"adult chimpanzees that live on the African mountain"
] | null | B | |
mmlu_stem | mmlu_stem_8854 | Everyone has done experiments in high school laboratories, but have you ever thought about designing a satellite to explore space? On Nov. 19, a team of students from Thomas Jefferson High School for Science and Technology in the US _ peers and even scientists by successfully launching a satellite. The first satellite designed and built by high school students was sent up into space along with a record-setting. 28 other small ones on a rocket were sent from a NASA center in Virginia, CNN reported. It took the students seven years to build. The students call their tiny satellite TJ3Sat, which is named after their school. It is just 10x10x12 centimeters and weighs only 0.89 kilograms, according to Orbital Sciences, a company which developed the rocket and supported the students' project. It can be controlled with a smartphone. Like most satellites, TJ3Sat can send and receive data. The small spacecraft is equipped with a voice synthesizer , which can switch text to voice and transmit those sounds back to Earth over radio waves, said Orbital officials. In this case, anyone can give it a try via the project's website (school website) by submitting a text. The texts that get approved will be sent to the satellite, changed to voice and then broadcast back to Earth via radio waves. "I can say 'Go Colonials' on our ground station and when it is on the other side of the world, in India, someone can hear 'Go Colonials'over the radio," the team explains on the website. The satellite will stay in space for at least three months. School principal Evan Glazer told The Washington Post that the project started in 2006 as an activity in the spare time. Later it became a research project for a select group of seniors. At a time when American students are busy with SATs, the launch of the satellite shows what diligent teenagers can achieve when allowed to pursue their own curiosities, Glazer said. "It used to be that kids growing up wanted to be an astronaut," Andrew Petro, program executive for small spacecraft technology at NASA, said in a statement. "I think we might be seeing kids saying what they want to do is build a spacecraft. The idea here is that they really can do that." According to the article, the launch of the satellite _ . | [
"is evidence of the advance of spacecraft technology",
"proves that hard-working teenagers can achieve a lot",
"shows the importance of extracurricular activities at school",
"has inspired many people to take an interest in space travel"
] | null | B | |
mmlu_stem | mmlu_stem_11970 | Seal seizes raft This seal really rocked the boat when he found himself an unusual place to hang out. After the seal came across a boat in the harbor where he lives, he fell inside and wouldn't _ for four days. "One morning the seal just pulled himself aboard," says Ed Stubbings, who owns the boat-turned-bed. Probably thinking the boat was a rock, the seal made himself at home. The seal didn't move an inch-----not even to eat or drink. Stubbings was a little worried that the 500-pound animal might sink it. Luckily on the fifth day, the seal fell back into the water and swam off. Alligator gets new tail When Mr. Stubbs the alligator swims through his pool at the Phoenix Herpetological Society, he looks like any other gator-----except that his tail is made of rubber. Mr. Stubbs is the first alligator known to wear an artificial tail. Mr. Stubbs was brought to the society nine years ago. "His tail was missing when he arrived," says President Russ Johnson. Mr. Stubbs couldn't walk or swim properly. "We showed him how to swim in the water," Johnson says. "But that hurt his back." Later, the scientists used rubber to build an artificial tail attached to Mr. Stubbs's back legs. "Once we put the tail on him, he walked with ease," Johnson says. Dog delivers papers Morgan started her "paper route" when she was young. One day as Morgan and her owner Bill set out on a walk, she spotted a rolled-up paper. To Bill's surprise, Morgan grabbed the object in her mouth, walked back to the house, and dropped it on the doorstep. Morgan enjoyed the activity so much that she wanted to deliver every paper she saw on her walks. Now three-year-old Morgan brings the paper to her owner and neighbors, even in bad weather. "Morgan has a natural instinct to carry things with her mouth," dog behaviorist Pat Miller says. "And she feels rewarded by the activity, so she keeps it up." It can be learned that Mr. Stubbs _ . | [
"injured his back",
"lost his tail and back legs",
"quickly got used to his new tail",
"was found by Ed Stubbings"
] | null | C | |
mmlu_stem | mmlu_stem_18987 | local plant varieties are the best for improving the local | [
"social status",
"environs",
"satellite reception",
"future"
] | null | B | |
mmlu_stem | mmlu_stem_21559 | A shark will generally avoid eating fish that | [
"they are symbiotic with",
"are their main prey",
"are already bleeding out",
"they like the taste of"
] | null | A | |
mmlu_stem | mmlu_stem_8967 | Gaudi Nanda sees a wearable computer as a handbag --- one that's built out of four-inch squares and triangles of fiber, with tiny computer chips embedded in it. It looks, feels and weighs like your typical leather purse. That's where the similarities end: this bag can wirelessly keep track of your belongings and remind you, just as you're about to leave the house, to take your wallet. It can review the weather report and suggest that you take an umbrella. This purse can even upload your favorite songs onto your scarf. Surely, a computing purse and scarf set may seem like the stuff of science fiction. But these devices, part of next generation of wearable computers, could become commonplace within a few years. Dupont created new super strong fibers that can conduct electricity and can be woven into ordinary-looking clothes. And the chipmaker developed chip packaging allowing wearable computers to be washed, even in the heavy-duty cycle. As a result, these new wearable devices are different from the heavy and downright silly versions of the recent past, which often required users to be wrapped in wires and type on their stomachs. Unlike their predecessors, these new wearable computers also make economic sense. When her bag becomes commercially available in two to three years, Nanda expects it will cost around $ 150, which is the price of an average leather purse. Here's how the bag works: You place a special radio-signal-transmitting chip onto your wallet. A similar radio in your purse picks up the signal and notifies you that you've forgotten to take your wallet. In turn, sensors on your purse's handles will notify the computer that you've picked up the purse and are ready to go. Already, these new kinds of wearable devices are being adopted for use in markets like auto repair, emergency services, medical monitoring - and even, increasingly, for consumers at large. _ According to the passage, the new wearable computers _ . | [
"require users to operate on the stomach",
"pick up the signals through wires and chips",
"are being applied in some different areas now",
"are smarter but more expensive than the old ones"
] | null | C | |
mmlu_stem | mmlu_stem_9850 | Before 1900, many theories existed as to the cause of yellow fever . Some doctors were sure the disease was air-borne; others felt that it was spread from person to person. Dr. Carlos Finlay, a well-known Cuban doctor of that time, had long held the theory that it was caused by the bite of mosquitoes. But neither the public nor the doctors then accepted his idea. Walter Reed,all American doctor sent to study yellow fever in Cuba,went to talk with Finlay.Reed,after reading a lot on the subject,had begun to think that Dr.Finlay might be fight.Then Reed and his comrades set to work at once.Outside Havana,they set up a laboratory and began experiments to test the theory.The experiments were successful.Now we know:A period of about two weeks must pass before a mosquito,after feeding on a sick person,could infect another person.The sick person had to have yellow fever a certain number of days before the mosquito biting him was able to carry the disease. Before 1900,many people didn't think yellow fever was spread _ . | [
"by air",
"by dirty water",
"by the bite of certain mosquitoes",
"by getting in touch with the patient"
] | null | C | |
mmlu_stem | mmlu_stem_955 | A son can inherit traits | [
"only from his father",
"only from his mother",
"from both his father and his mother",
"from either his father or his mother, but not from both"
] | null | C | |
mmlu_stem | mmlu_stem_13104 | Huang Naihui was born in 1964 in Taipei. When he was a child, he had a very high fever, which made him partially paralyzed. His parents were afraid that he would bring bad luck to the family and abandoned him. But his grandmother brought him up. It was at the age of 13 that he went to school. At the age of 22, he would study and work part-time. He would sell flowers during the day and attend classes at night. During his spare time he would study. The learning made him very happy. He used his knowledge very well in his business of selling flowers. He would go door to door selling flowers during the day. He would sell flowers at pubs and night clubs at night. At times, in order to sell, he had to sing. He was often tricked. However, he would face the next customer with a smile. His grandmother passed away when he was 24. It was the darkest day of his life. Today Huang Naihui owns 3 flower shops and employs disabled people to work for him. He would spend his spare time doing charity work. His book Facing the sun and his story have encouraged many people. ,. What made Huang Naihui disabled? | [
"A high fever.",
"The hot weather.",
"The hunger.",
"The cold."
] | null | A | |
mmlu_stem | mmlu_stem_15899 | What does a UFO look like? Do you believe there are aliens outside the earth? Maybe nobody can tell us exactly, but some of us believe that we humans are not alone in this world. We have friends living outside the earth. And a lot of people in the world think they really have seen a UFO flying in the sky. Now many scientists are trying to understand the origin of the UFO sightings. Scientists even try to draw pictures about aliens and aliens' life according to their imagination. Because we don't really know about it, we call it UFO or Unidentified Flying Object. Many of us are curious about it and interested in it very much. While scientists have no same ideas about whether there is an alien or not, it seems that China has been home to some UFO sightings recently. On August 20th,2011, a UFO was seen at 21:00 by the pilot on the plane which took off from Pudong International Airport to Changchun. At almost the same time, many astrophiles took pictures of it. Later, reports from some cities said that the UFO was seen. The pilot said the UFO was small at first, then expanded ,moved north, and disappeared several minutes later. However, he couldn't exactly make sure about what he had seen. Which of the following sentences is NOT true according to this passage? | [
"UFO is short for Unidentified Flying Object.",
"Some people from some cities said that they saw the UFO on August 20 th,2011.",
"The pilot could exactly make sure what he had seen.",
"Many of us are interested in the UFO."
] | null | C | |
mmlu_stem | mmlu_stem_6961 | There is a brown female Canadian duck that weighs only four hundred fifty grams. The duck had flown to the southern state of Florida for the winter.A hunter shot it on January fifteenth and took it to his home in the city of Tallahassee.He put it in the refrigerator .Two days later the man's wife opened the refrigerator door.The duck lifted its head and looked at her.It was alive! The family took the duck to a doctor who treats animals.The doctor gave the duck to the Goose Creek Animal Sanctuary .Animal sanctuaries provide homes for animals and teach people about their care. The doctor said it was easy to understand why people thought the duck was dead. He said ducks generally do not move a 1ot,especially after being shot.And he said its low body temperature helped it survive in the refrigerator. _ was enough to make the duck famous around the world.The Tallahassee newspaper published the story that was re-printed in many different countries.But that was not the end of the story. Workers at the wildlife sanctuary named the duck Perky.And they got the doctor to give an operation to repair the duck's damaged wing.During the operation,Perky stopped breathing--not just once but two times.The doctor tried to save Perky by giving her oxygen.But he finally said the duck had died.A few seconds later, however, Perky began to move.Reports say the people in the operating room were so happy that they cried. Workers at the wildlife sanctuary say Perky will not have any more operations. It seems the drugs that were used had side-effects on her.Perky is expected to live at the sanctuary.And a local company has begun to sell T-shirts showing a picture of the lucky duck. Money from the sale of the shirts will help pay for Perky's care. What is the best title for the passage? | [
"Save the Duck",
"The Lucky Duck",
"Stop Killing Ducks",
"The Poor Duck"
] | null | B | |
mmlu_stem | mmlu_stem_10198 | The red crab lives on Christmas Island in the Indian Ocean and has been found nowhere else in the world. But on its homeland it is a very significant species -- some 120 million individuals cover the rain forest floor and play a major role in determining the structure of the ecosystem. These large crabs are active during the day but prefer to stay in the shade and can die in the heat of direct sunlight. They feed on fallen leaves, seeds, fruits and flowers, recycling nutrients and helping to determine the spread and composition of native plants. Most of the year the red crabs live in the holes they dig throughout the forest. During the dry season they hide in these shelters to keep their body wet and remain there for two to three months. But when wet season returns in October or November they begin a legendary mass migration to their seaside breeding grounds, moving in color1ful wave that wash over all obstacles like roads (including special passages and some closed roads built for the red crab) and even seaside cliffs. The annual migration is also closely tied to the lunar schedule. The crabs arrive at the coast and breed at such a time that the females can produce eggs and develop them in caves for a dozen or so days before carrying them into the sea exactly when high tide turns between the last quarter and new moon. During this period sea level on the beaches varies the least and offers an easier approach, which is so important that if the weather delays the migration crabs will put off laying eggs until the next lunar month. Red crab eggs grow right away, and the young live in the sea for a month before returning to the coast, changing into air breathers, and slowly returning inland to begin the cycle once again. What's important for the red crab to reproduce their young? | [
"The right caves.",
"The number of the crabs.",
"The movement of the moon.",
"The temperature of the tide."
] | null | C | |
mmlu_stem | mmlu_stem_22458 | Which is a byproduct of a lightbulb? | [
"taste",
"death",
"warmth",
"sound"
] | null | C | |
mmlu_stem | mmlu_stem_16190 | While you're in Shanghai, please come and take a walk round some of our interesting places. Shanghai Museum You must see this beautifully designed museum. It is a wonderful place to study Chinese art and history. There are ancient treasures, fantastic Chinese sculptures, paintings from all ages and many other things for you to enjoy. Pay to enter. Open 9:00 am - 5:00 pm.(9:00 am - 8:00 pm, Saturday) Yu Gardens These famous Ming gardens are often rather crowded. Don't forget to try their delicious snacks. Pay to enter. Open 8:30 am - 5:00 pm. Lu Xun's Museum This is a great place for book-lovers. There are photographs of the famous writer, some of his books written by hand and many letters. A very interesting place for a few hours. Very cheap. Open 9:00 am - 4:00 pm. Shanghai Natural History Museum Everything is about the natural world and science. You can study dinosaurs, hundreds of animals, plants, rocks and more, and see many unusual exhibition. Very cheap. Open 9:00 am -5:00 pm. Shanghai Art Museum An interesting building, once used as a race club and library. Drop in and see the latest exhibition. There are shows by painters from all over the country. The museum also encourages research into art. Pay to enter. Open 9:00 am - 5:00 pm. You can study _ when you visit Shanghai Natural History Museum. | [
"robots",
"letters",
"bamboos",
"coins"
] | null | C | |
mmlu_stem | mmlu_stem_13244 | Tom with his grandparents lives in a farmhouse. He studies in a small school. It is not far from his home. So he walks to school every day. There is a small river in front of the school. There is a small bridge over the river. There is only one shop near his school. There is a big playground behind the teaching building. There are some tall trees near the classroom building and the students often read and play under the tree after school. People there are all very friendly. Students in Tom's school _ read and play after school. | [
"often",
"don't like to",
"sometimes",
"seldom"
] | null | A | |
mmlu_stem | mmlu_stem_18852 | Which two factors determine the gravitational attraction between two objects? | [
"time and temperature",
"shape and orbital speed",
"color and hardness",
"mass and distance apart"
] | null | D | |
mmlu_stem | mmlu_stem_612 | Which of the water samples described below has the greatest average kinetic energy per molecule? | [
"1 liter of ice at a temperature of -50°C",
"10 liters of ice at a temperature of -75°C",
"1 liter of water at a temperature of 75°C",
"10 liters of water at a temperature of 50°C"
] | null | C | |
mmlu_stem | mmlu_stem_15632 | I'm Alfred. I was born with a problem in my backbone and mobility was a big challenge, but thanks to my teachers and friends, my school life was excellent. My friends and I used to sit together and have lots of fun. Whenever we got a free period, we used to start shouting or play games. I would take part in all competitions, such as poetry writing, story writing and painting and all activities like Teachers' Day or anybody's birthday and had much fun. My English teacher was very tall. The moment she would enter the class, we would all sit quiet and open the books. She would encourage me by giving me important assignments and also morning news to read during the assembly. She would come down and hear my English debate , which made me participate in all debate competitions. The same was true of my biology and science teacher. She was very nice and sweet. She would always give me extra information on the biology project. I could not go to the lab for the practicals (lessons or exams in science, cooking etc. in which you have to do or make something yourself rather than write or read about it), so she would bring the lab down and help me with the biology and science practicals and would give me excellent marks. My friends made me monitor and the naughty boys listen to me. My friends used to help me with my notes if I was absent. My teachers always gave me important project work and I felt proud when they _ after I finished it quickly and correctly. I was never shouted at or made fun of or scolded by any of my friends and teachers. Today I saw the terrible punishments given to students on television news. I felt very sad. I really want to express my love and thanks to all my wonderful teachers and friends, without whom my school life would not have been so excellent and unforgettable. I really pray to God that each child in the world is blessed with caring teachers and wants to attend school every day. How many Alfred's teachers are mentioned in the passage? | [
"One.",
"Two.",
"Three.",
"Four."
] | null | B | |
mmlu_stem | mmlu_stem_2048 | Base your answers on the information below. One hot, summer day it rained very heavily. After the rain, a plastic pan on a picnic table had 2 cm of rainwater in it. Four hours later, all the rainwater in the pan was gone. Which process caused the rainwater in the pan to disappear as it sat outside in the hot air? | [
"condensation",
"evaporation",
"precipitation",
"erosion"
] | null | B | |
mmlu_stem | mmlu_stem_9414 | *The Hotel Portixol,a hotel that oozes style and has thoughtful extras in Palma Majorca. *Location In the bay of Portixol,a 30-minute walk or 10-minute cycle east of the old town,overlooking Portixol port. *Character The square white building,with its blue shutters and dark wooden balconies,stands out as you approach Portixol. Inside as well as out,Hotel Portixol oozes style - wicker sofas in a shade deck. Thoughtful extras include free bicycle hire and telescopes in each room. *Rooms Thirteen of the 26 rooms have balconies,overlooking the sea. All have large showers and king-size beds. Our corner room had double glass doors on two sides which created a much-needed breeze. *Food Breakfast is a feast,with a huge selection of fresh fruit,yogurts,cereals,meats,cheeses and breads. The lunch and dinner menus mix traditional Mediterranean food with eastern and European classics. *Why Palma? Parts of Majorca have a certain reputation,but calm,sweet Palma is a far shout from the island's busy and sometimes tacky beach resorts so popular with hen and buck parties. The Majorcan capital is also one of the easiest short-break destinations in Europe. The old town is a 10-minute taxi ride from Palma airport,while the tangled streets inside the old city wall combine the best restaurants,shopping and culture Majorca has to offer. While very hot in summer,temperatures remain pleasant during the rest of the year. *Getting there Easy Jet flies to Palma from most airports in the UK,from PS29.99 one way. A taxi from Palma airport to the city centre costs about PS8; or you can catch a bus which costs a few euros. How much will be spent if a family of three goes to the city centre of Palma for a round-trip? | [
"Over PS114.",
"Less than PS228.",
"More than PS180.",
"Only PS76."
] | null | B | |
mmlu_stem | mmlu_stem_20340 | An animal that perhaps uses light to it's advantage is | [
"comb jellies",
"dolphins",
"cats",
"whales"
] | null | A | |
mmlu_stem | mmlu_stem_9645 | "Get out of the plane!" Justin shouted. Teddy and he dropped to the ground,.... When Kathy and Victor reached the edge of the grassland, flames were shooting more than five meters into the air. Kathy couldn't believe what she was seeing. One glance told her they needed medical attention immediately. She questioned Justin, " Is there anyone in the plane?" "No," he said. "Where are you able to radio for help?" "There was no time." " I'm a distance runner." Kathy said, "I'll go for help." Looking at the seriously injured men, she said, "It may take me several hours to get out." She started out. When she was 23, Kathy set a women's-course record in a Marathon. She had run 42 kilometers. But now she was running the race of her life. She had nearly 30 kilometers of hard wilderness to cover to get help. Kathy had been running for two hours. This was far back into the wilderness. The trail grew unclear. She stopped to take a quick compass reading. She had run for more than 20 kilometers. Her heart fell, her muscle aching. Finally she saw her car in the distance. She jumped into the car and sped away. She reached a holiday house and called the police. During the wait she walked around, relaxing her legs and drinking water. It took almost two hours for a helicopter to reach her. They needed her for one more task. Why did she walk around, relax her legs and drink water? Because _ . | [
"She was too tired",
"she felt thirsty",
"she wanted to regain lost energy",
"nothing else could be done then"
] | null | C | |
mmlu_stem | mmlu_stem_20205 | Fauna will have to flee if their home is | [
"prepared",
"having renovations done",
"being built",
"demolished"
] | null | D | |
mmlu_stem | mmlu_stem_6743 | Human beings have a natural desire to explore the unknown. People with a strong interest in space like to say it is the last place left to explore. But scientists are warning that space exploration for long periods is not going to be easy. They say the human body is not designed to stay in space over an extended period. The New York Times recently published a report about scientists who are preparing astronauts for a trip to the Moon. The newspaper said the scientists want to make sure that their crews return home in good health. But there are many problems to be solved before people are ready for long trips to the Moon, an asteroid or even the planet Mars. Humans developed on a planet with a surface that is more than 70 percent water. Our bodies are also about 70 percent water. When there is no gravity that water moves up toward the head, raising pressure in the skull. Arms and legs grow weaker at what is called zero gravity because they no longer need to push against the force of gravity. Five years ago, astronauts who spent weeks in space reported a change in their eyesight. These astronauts were members of the crew on the International Space Station. Research showed a change in the shape of their eyes. Normally-round eyeballs had become flat during time in space. The research also showed that the right eye was affected more than the left, and that men were more affected than women. Scientists could not find an explanation for the differences. Bone loss was one of the problems first reported by astronauts returning to Earth after longer stays in space. So scientists designed exercise machines to use on the space station. Tests showed that the exercise equipment helped space travelers keep their bones almost as strong as when they left Earth. There are other health issues for astronauts who spend a long time in space. They may have problems eating and sleeping. But the biggest health issue is exposure to radiation. On Earth, human beings are protected by the atmosphere and the planet's magnetic field. In outer space, there is no such protection. What will happen to human bodies in space? | [
"Arms and legs grow stronger at what is called zero gravity",
"Blood moves up toward the head.",
"Pressure in the skull will be raised.",
"All of the above."
] | null | C | |
mmlu_stem | mmlu_stem_10230 | At The Children's Hospital, we're making it all better for our patients and their families all the time. We invite you to see how we' ve grown and discuss opportunities to enhance your nursing career. We offer competitive salaries and benefits, flexible shifts, including 4,6,and 8-hour shifts, education assistance, low patient ratios and a supportive work environment. New graduates are encouraged to attend. *Our main campus is Denver's only Level I peds trauma center with a LevelIIINICU as well as one of the top children's hospitals in the nation. *Our brand new 50,000 square-foot North Campus on Highway 7,just west of l-25 will open this October. *Our new surgery center in Lone Tree is now open. *We will soon be opening the 9th floor of our main facility to serve even more patients. For directions and to view current positions, please visit our website at www.thechildrenshospital.org The Children's Hospital is an equal opportunity employer. *The Children's Hospital has been ranked nationally by US News&World Report every year since its 1993 inception. Nursing Recruitment Event at The Children's Hospital l-225&Colfax Ave Princeton&Yale Conference Rooms Thursday, Sept 4th, 4:00 p.m. - 7:00 p.m. Please RSVP by calling (720)777-2641 Department Tours: 4:30; 5:30; 6:30 Nurse employers new to The Children's Hospital | [
"often have to take long night shifts",
"should have a graduate degree at least",
"could transfer to other top children's hospitals in the nation",
"could receive education assistance"
] | null | D | |
mmlu_stem | mmlu_stem_20207 | A carbonated beverage contains dissolved what? | [
"steel",
"plastids",
"plastic",
"carbonic anhydride"
] | null | D | |
mmlu_stem | mmlu_stem_10737 | As a boy,Tim was much influenced by books about the sea, but in fact by the age of fifteen he had decided to become a doctor rather than a sailor. His father was a dentist and as a result Tim had the opportunity of meeting many doctors either at home or elsewhere. When he was fourteen he was already hanging around the clinic of a local doctor where he was supposed to be helping to wrap up medicine bottles,but was actually trying to listen to the conversations taking place between the doctor and his patients in the next room. During the war Tim served in the Navy as a surgeon ."That was the happiest time of my life. I was dealing with very real suffering and on the whole making a success of it ."In California he taught the country people simple facts about medicine. He saw himself as a life-saver. He had proved his skills to himself and his ability to take decisions. Thus,while he was able to tell them what to do, he could feel he was serving them. After the war, he got married and chose to be a doctor in the countryside,working under an old doctor who was popular in the area,but who hated the sight of blood and believed that the secret of medicine was faith. This gave the younger man many opportunities to go on working as a life -saver. From the passage we can infer that Tim_. | [
"was sent to Europe during the war",
"worked as a surgeon during the war",
"was satisfied with his career as a surgeon.",
"decided to give up medicine for faith"
] | null | C | |
mmlu_stem | mmlu_stem_5163 | Tour One invites you to join our tours of the Capital City. Your host will entertain you with historical anecdotes and offer an endless supply of "insider" tips to make your visit wonderful. Your time with us will be the highlight of your visit to Washington DC. Because class size does matter, Tour One uses a minibus for your convenience and personal attention. Also a minibus can easily get in and out of the popular areas. You're not here to waste time. Day tour picks you up at your hotel in DC at 9 am. Your personal tour guide will _ while you are visiting the White House, the US Capitol, the Arlington National Cemetery, the Lincoln Memorial, the Vietnam Veteran's Memorial and the Korean War Veteran's Memorial. Your 90-minute lunch break will be at the Smithsonian Natural History Museum. The eventful day tour ends at 5 pm back at your hotel. The price is $60 per adult, $40 per child under 13 years. There are no admission fees because all government buildings, the Smithsonian Museum, memorials and monuments have free access. Tour One Inc. accepts credit cards, checks, cash and stock options. If you have any questions or wish to make reservations , please e-mail us at the bottom of the page. The night tour will show off the true glory of the glowing symbols of the nation. We pick you up at your hotel at 7 pm and drop you back by 10 pm. You will visit the Iwo Jima, the Jefferson, the Kennedy Center and the FDR Memorials. The price is $25 per adult and $15 per child under 13 years. Contact us at TOUR ONE INC. POB 77084 Washington DC 20013. Office: 202-487-TOUR. Fax: 301-530-5542. E-mail: ThePresident@whitehousetours.com. How much will they pay if a couple goes on both a day tour and a night tour with their twelve-year-old boy? | [
"$140.",
"$160.",
"$225.",
"$215."
] | null | C | |
mmlu_stem | mmlu_stem_9914 | Carmen Arace Middle School is situated in the town of Bloomfield,but four years ago it faced many of the same challenges as inner--city schools nearby:low scores in standardized tests and dropping enrollment of students.Then the hard-driving headmaster, Delore Bolton,persuaded her school to shake up the place by buying a laptop computer for each student and teacher to use in school and at home.For good measure,the board provided wireless Internet access at school.Total cost :$5 million. Now an hour before classes start,every seat in the library is taken by students eager to get online.The teacher talks about rocks as students view them at a colorful website,after school students on buses pull laptops from backpacks to get started on homework.Since the computers arrived,scores in state tests are up 35%and the enrollment increases by 20%. Indeed,school systems in rural areas are eager to follow Carmen Arace Middle School's example.Angus King,the state governor, has proposed using$50 million from an unexpected budget to supply computers for students. However, the school is seeking federal grant money to expand the laptop program.In the meantime,most of the problems have been worked out.Some students use computers to visit unauthorized websites,but teachers have the ability to track where students have been and restrict them."That is the worst when they disable you" says a boy.The habit is rubbing off on parents."I taught my mom to use e-mail."says the honorable girl."And now she is taking computer classes.I'm so proud of her!'' From the passage we learn that _ . | [
"the laptop program also has a positive influence on parents",
"the laptop program in urban schools is forbidden by parents",
"students only visit the school website in Carmen Arace Middle School",
"students generally like the idea of having their online activities tracked"
] | null | A | |
mmlu_stem | mmlu_stem_5023 | Our sun is a star, and nine worlds move round it. Worlds like these are planets . But there are other stars, other suns. Not only thousands of them, but millions of them. Do different stars have planets? We can see the planets round our own sun. But we haven't seen any more. The stars are too far away from us. Stars give out light, but the planets don't have any light of their own. So we can't see them. They're too far, and too dark. Still, we can tell that some stars have planets. While a big planet goes round, it pulls its star to one side. And sometimes we can see this, Then we know that the star has a planet. For example, Barnard's Star is a small red star. And it is the quickest star in the universe. But sometimes it moves slower, and then quicker again. We have know Barnard's Star for many years, and now we are sure it has a planet. Barnard's Star moves more quickly than _ . | [
"most stars",
"any other star",
"its planet",
"the planets round the sun"
] | null | B | |
mmlu_stem | mmlu_stem_1682 | Billy was a monster. He was born in Monster Town, where he learned how to be a monster and how to do monster things. One day Billy was very hungry. There are no stores in Monster Town, so Billy had to find his own food. He saw some bugs but he did not want to eat those because bugs are gross and taste bad. Then he saw a bunny and thought it would be a good thing to eat. Bunnies are very delicious. Monsters eat all sorts of things that humans do not eat. Billy chased the bunny into a field. Soon he could not find it any more. Bill was sad. He was still hungry. But then he saw a house. He sneaked towards it and looked inside. No one was home. He crawled through an open window and saw a funny looking box. He opened it and saw many little pebbles inside of all different colors. He was about to eat them when a small human child appeared out of nowhere and took the box out of his hands. Silly Billy, Trix are for kids. Why did Billy want to eat the bunny? | [
"Billy's friend dared him to eat a bunny.",
"The bunny was mean to Billy.",
"Billy was hungry and bunnies are delicious.",
"Billy was bored"
] | null | C | |
mmlu_stem | mmlu_stem_17255 | Which sense is used to tell if there is sugar in a glass of tea? | [
"Touch",
"Hearing",
"Smell",
"Taste"
] | null | D | |
mmlu_stem | mmlu_stem_21100 | Which is likely to still be in water after treatment? | [
"feces",
"dirt",
"harmless dissolved rocks",
"mercury"
] | null | C | |
mmlu_stem | mmlu_stem_11853 | It is 7 o'clock in the morning. You check yourself in the mirror, adjust your collar, and consider the busy day ahead. But at least you know that the stress won't damage your health, for this is no ordinary set of clothes you are wearing. Set within the fabric are numerous sensors, constantly monitoring your vital signs. If danger signs are detected, the garment is programmed to contact your doctor and send a text message telling you to take it easy. Garments that can measure a wearer's body temperature or trace their heart activity are just entering the market, but the European project BIOTEX weaves new functions into smart textiles. _ biosensors in a textile patch can now analyse body fluids, even a tiny drop of sweat, and provide a much better assessment of someone's health. Jean Luprano, a researcher at the Swiss Centre for Electronics and Microtechnology (CSEM), coordinates the BIOTEX project. "One of the most obvious applications for smart fabrics is in the medical field," he says. "There has been a good deal of progress with physiological measurements, body temperature or electrocardiograms . But no one has yet developed biochemical sensing techniques that can take measurements from fluids like sweat and blood. We are developing a suite of sensors that can be integrated into a textile patch. The patch is a sensing and processing unit, adaptable to target different body fluids and biochemical species. At the very least, some basic biochemical analyses could complement the physiological measurements that can already be monitored. In some circumstances, fluidic analysis may be the only way to get information on a patient's health status." What is the text mainly about? | [
"How to make your day stress free.",
"Biochemical sensing techniques.",
"Smart clothes that track your health.",
"New advancement in the medical field."
] | null | C |
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