dataset string | id string | question string | choices list | rationale string | answer string | subject string |
|---|---|---|---|---|---|---|
mmlu_stem | mmlu_stem_11786 | Pigs are always considered dirty animals because they roll in mud.But in fact they prefer being quite clean.They cover themselves with mud to help stay cool.During cooler weather, they prefer to stay clean.So do elephants,who also cover themselves in dust or mud to keep cool. When they find a place with clean water they will take a bath,using their long noses to give themselves--or each other--a nice shower Some animals use dust to get clean.Chinchillas have very fine fur. They don`t like to take water baths because water is not warm enough for them.So, instead, they roll around in fine dust.The dust helps to keep their fur and skin dry.This protects them from disease Usually, a small bird is a light meal for a crocodile.But when a crocodile wants its teeth cleaned.it lies on the ground with its mouth open.The crocodile bird goes in and picks out any parasites between the crocodile`s teeth or under its tongue.The crocodile gets its mouth cleaned,and the crocodile bird gets dinner. You wouldn`t think fish would need baths.But some undersea parasites live under the fish`s skin."Cleaner"fish,like the wrasse ,help take them away.The wrasse stands on its head and dances to signal a big fish that it is ready to go into the cleaning business.The big fish will stop moving and open its mouth wide so the wrasse can swim inside and pick out parasites and bits of food. The passage is mainly about how animals_. | [
"stay clean",
"help each other",
"get their food",
"Take baths"
] | null | A | |
mmlu_stem | mmlu_stem_5896 | Scientists in UK have grown a living human "brain". The team at Aston University created tiny bunch of cells which act like a mini nervous system. They believe it could help find a cure for worse mental conditions like Parkinson's disease. Professor Michael Coleman is leading the research program. He explained, "We are aiming to be able to study the human brain at the most basic level, using an actual living human cell system. Cells have to be alive and operating efficiently to enable us to really understand how the brain works. "The experiment involves changing cells from a cancer tumour and making them behave like brain cells. Although far from finished, researchers hope the false brain cells will give them a greater understanding of how real brains work. This, in turn, could significantly further research into conditions which affect the brain. Neil Hunt, chief leader of the research group, said, "It is still very early days, but in the future the research could lead to a useful tool for looking into dementia ." The technique could also provide a way to carry on animal test and is being supported by the Humane Research Trust (HRT). The scientists predict that over the next ten years a million people will develop dementia. Professor Coleman believes their findings could change this. He said,"We hope our research will provide scientists with a new and highly relational human experimental model to help them understand the brain better and develop new drugs to control the related disease. However, the biggest challenge at present is that we are greatly short of fund, which will slow our research." UK scientists grow a living human "brain" in order to _ . | [
"study the structure of human brain",
"make use of living human cell system",
"discover how human brain really works",
"separate cells from a cancer tumour"
] | null | C | |
mmlu_stem | mmlu_stem_6411 | When I was at university, I studied very hard. But a lot of my friends did very little work. Some did just enough to pass exams. Others didn't do quite enough. Fred Baines was one of them. He spent more time drinking in the Students' Union than working in the library. Once, at the end of the term, we had to take an important test in chemistry. The test had a hundred questions. Beside each question we had to write "True" or "False". While I was studying in my room the night before the test, Fred was watching television. Fred usually worried a lot the night before a test. But that night he looked perfectly calm. Then he told me of his plan. "It's very simple. There are a hundred questions and I have to get fifty correct to pass the test. I'll take a coin into the examination room. I haven't studied a chemistry book for months, so I'll just toss the coin. In that way, I'm sure I'll get half the questions right." The next day, Fred came cheerfully into the examination room. As he sat tossing a coin for half an hour he marked down his answers. Then he left half an hour before the rest of us. The next day, he saw the chemistry professor in the corridor. "Oh good," he said, "Have you got the results of the test?" The professor looked at him and smiled. "Ah, it's you, Baines, just a minute." Then he reached into his pocket and took out a coin. He threw it into the air, caught it in his hand and looked at it. "I'm terribly sorry, Baines," he said, "You failed!" This time Fred expected to get _ . | [
"an excellent mark",
"a low mark",
"his usual mark",
"the pass mark"
] | null | D | |
mmlu_stem | mmlu_stem_12144 | Officials of the Chicago Transit Authority said they were investigating. The child, Nicole Hobson, was being taken by her mother to Children's Memorial Hospital about 11 P. M., Wednesday to check her recently inserted pacemaker. The child was stricken about a mile from the hospital. Her mother, May Hobson, 40, said, "I told the bus driver that my baby had just had heart operation and that she was having a heart failure. He said he couldn't go through the traffic." Ted Garretson, 28, a passenger who had tried to bring back Nicole's life, said the driver did nothing to help and stopped once to pick up more passengers. When the driver reached a corner where he was to make a turn, a block from the hospital, he told Mrs. Hobson to get off, she said. A transit spokesman said the driver should have made radio call to the control center for help. A pacemaker is _ . | [
"a musical instrument",
"a machine",
"an organ",
"a toy car"
] | null | B | |
mmlu_stem | mmlu_stem_13561 | Jane Scott is fourteen and the year before last she began to study in a middle school. She likes dancing and singing and spends a lot of time on them. But she hates math and does not work hard at it. She thinks it difficult to learn. She falls behind her classmates and once failed the math exam. She decides to drop it. Her father is angry with her when he knows about it. It was Sunday. Mr Scott gave a call to his sister, who teaches math in another school. He hoped she would come and tell his daughter how to learn math. The woman came quickly and said. "You're a clever girl, Jane. I'm sure you'll soon do well in math if you work hard at it." "I'm afraid I can't, Aunt," said Jane, "Girls can't be good at math." "I don't think so," said the woman. "I was good at it when was a girl. You must do more exercises and practice a math problem again and again until you master it. Remember: Practice makes perfect. Well, it's a math problem. Think about it and practice it again, and you'll work it out." "OK," said the girl, "Let me try." About an hour later, Jane took the exercise book to her aunt and said, "I've done the problem ten times." "Well done!" her aunt said happily, "What result did you get?" "Ten answers." Mr Scott wanted her sister to help with her because _ . | [
"She was a math teacher",
"Jane loved her very much.",
"Jane was afraid of her.",
"He knew nobody except her."
] | null | A | |
mmlu_stem | mmlu_stem_20997 | The tree trunk is what holds up the | [
"sky",
"roots",
"sky",
"leaves"
] | null | D | |
mmlu_stem | mmlu_stem_14195 | There have always been a lot of commonly believed but false ideas about being fat and doing exercise. Some people believe that they can't help putting an weight as they get older, while others hold that if they stop exercising, their muscles will turn into fat. Here are some more myths. I'll never lose weight--I come from a fat family Wrong! While we can't change the body type we are born with, we can't blame our genes for making us fat. There's plenty of evidence that fatness runs in families, and the main reason is that they share the same habit of eating too much and exercise too little. I am fat because I burn calories slowly Wrong! Fatness is not caused by a slow metabolism . In fact, although fat people consume more energy than slim people, they also fail to realize how much they eat. Keeping a diary can help you work out your daily food intake more accurately . Exercise is boring Wrong! Anything will become boring if you do it again and again. The key is to develop a balanced and varied program that's fun as well as progressive . If you enjoy a Sunday walk, take a different mute. If you do yoga , try a tai chi class. No pain, no gain Wrong! Exercise is not meant to hurt. Indeed, pain is your body telling you something's wrong, and continuing to exercise could lead to serious injury . You may experience mild discomfort as you begin to exercise regularly, but this is your body _ the positive changes in your lifestyle and the aches should disappear quickly. If they don't, rest and ask for medical advice. What is the writer's opinion about "No pain, no gain" in exercising? | [
"Keeping fit is essentially a painful experience.",
"Exercise should be stopped if continuous pain is felt.",
"Pain in exercise is a precondition for reaching your goal.",
"Getting used to pain leads to positive changes in your body."
] | null | B | |
mmlu_stem | mmlu_stem_16323 | Jeff Corwin is a scientist and writer. He does these jobs with one life goal help save animals and their habitats. His latest book, 100 Heartbeats: The Race to Save Earth's Most Endangered Species. Is a collection of stories about animals on the edge of _ . Corwin recently talked to a reporter. Reporter: How would you describe your job? Corwin: My job is to travel around, look at animals and tell their stories. Reporter : When did you know this is what your wanted to do? Corwin: I knew that when I was 6 years old. My dad was a police officer, and we lived in the city. I really enjoyed the time when I could go to the quiet countryside. One day I saw my very first wild snake and I knew that's what I would do for the rest of my life. I didn't know if I would be a teacher or a zookeeper, but I knew I would have a life connected with nature. Reporter: Why did you write the book? Corwin: We are losing species very fast. _ If we make big changes, we may have the chance to save what remains. Reporter: Is it true that humans are the reason that many of these animals are in danger? Corwin: Human beings have a powerful effect on every other living thing. It's important to make that effect a positive one. ,. Jeff's life goal is to _ . | [
"protect the environment",
"do some scientific research",
"save animals and their habitats.",
"Let more people know about nature."
] | null | C | |
mmlu_stem | mmlu_stem_17326 | Phobos is one of two large objects that orbit the planet Mars. Because Phobos orbits Mars, Phobos should be classified as which type of body? | [
"asteroid",
"moon",
"comet",
"meteor"
] | null | B | |
mmlu_stem | mmlu_stem_6396 | Whether you prefer burning the midnight oil or going to bed early so you can get up at the break of dawn depends on your genes , according to experts. I jump out of bed each morning, eager to start an active day. But I can hear my neighbour's alarm clock ringing non-stop every morning and I doubt he gets to work on time. A lot of noise comes from his flat in the evening. He's happy to stay up watching TV till after midnight, while I go to bed early and try to sleep. Well, it might not be his fault after all. I'm called 'a lark ' and my neighbour 'an owl '. We all have inside 'clocks' in the brain to control all kinds of bodily functions and it is reset every day by light. These inside clocks run to a different schedule in 'larks' and 'owls'. If you have a fast clock, you like to do things early, and if you have a slow clock, you like to do things late. Because we live in a 24/7 world, scientists believe it's important to understand a person's 'chronotype' - the time of the day when they function the best. It could help us lead a healthier life. A US professor has studied sleeping patterns and thinks work times should be changed and made more individual to fit in with our chronotypes. And he has advice for those who can't choose their working hours: "If that's not possible, we should be more careful about light exposure", says the professor. "You should try to go to work not in a covered vehicle but on a bike. The minute the sun sets we should use things that have no blue light, like computer screens and other electronic devices." We can learn from the passage that the author's neighbour _ . | [
"almost always gets to work on time",
"has to work deep into the night every day",
"is passive during the day but energetic at night",
"is easily woken up by his alarm clock in the morning"
] | null | C | |
mmlu_stem | mmlu_stem_11768 | We bet that on cold wintry days, many of you love to stay in your warm home and, every now and then, come out into the kitchen for a snack. Unfortunately, plenty of creepy-crawly critters like to do the same thing! Winter is the time when bugs invade your house without an invitation. The season can be tough for such creatures. In winter the air is cold, the ground is hard and many trees have no leaves. So bugs do what they have to do to survive. Monarch butterflies head south to warmer climates. Ants crowd in deep underground colonies and eat food they have been storing all year. Many insects go into a deep sleep called diapause. There're different kinds of diapause, but all are similar to hibernation, a time when bigger animals become inactive in the cold. Insects go into an inactive period, too, but it often isn't when the temperature drops. They rely on more dependable signals in the environment. For example, many insects can tell how much sunlight there's each day. They use that to tell themselves when to shut down. Bugs are cold-blood-ed, meaning that their inside temperature is the same as the outside. They can't move much when it gets below 40 degrees Fahrenheit. So they search for any warm place. They're looking for protection. These guys have been doing this for 300 million years, so they don't really know they're coming into your house. The home is a recent event in terms of their evolutionary behav-ior. They enter through tiny cracks or come in unnoticed on your clothes or shoes. Remember that they may be invading your homes for warmth and food, but they don't care about humans. What is the main idea of the text? | [
"Bugs'life on cold wintry days.",
"Why do bugs invade your home in winter?",
"Good relations between humans and bugs.",
"What does diapause mean?"
] | null | B | |
mmlu_stem | mmlu_stem_2841 | Jerry Morris died on 28 October 2009. He was 99 years old. You have probably never heard of him. He was a professor of public health. More than 50 years ago he produced one of the most famous epidemiological papers of the 20th century. His study showed that bus conductors were much less likely to die of heart disease than bus drivers. Why? Because the conductors spent their working day walking. It seems obvious now but in the middle of the last century doctors were puzzled by the rising numbers of people who got heart diseases. Jerry Morris found one of the main causes: a sedentary lifestyle. He started exercising for a few minutes each day and lived until his 100th year. If you wish to protect your heart, you have to do more than wander in the garden. The exercise needs to be reasonable. Jogging is not for everyone and a round trip to the gym takes a couple of hours, plus the monthly membership fee is only good value if you visit regularly. The answer is simple: walk. A half-hour purposeful walk five times a week will lower your risk of heart disease, diabetes and strokes. Older people sometimes feel they have left it too late. But it is never too late to start and there are no upper age limits. Start gently. Take your time: a 15-minute flat walk in the nearest park, four or five times a week. Within a month or so, you are already beginning to protect your heart. Build the walks up. When you can comfortably walk for half an hour in the park, go further: try following rivers and canals. Regular walkers have their own natural gymnasium. There is no membership fee, just some of the finest scenery in the world. Great Britain is the walker's gym. When you have followed the rivers and canals, and are enjoying walking for a couple of hours, head for the coast. Once again, build it up slowly. When you are comfortable with long coastal walks, you can think of our national parks. We can learn from the passage that _ . | [
"bus conductors are more likely to die of heart disease than bus drivers.",
"doctors in the 1950s knew why heart diseases kept happening to people.",
"walking is better than doing sports in a gym because it saves time and money.",
"British people love walking because they have free gymnasium with finest scene... | null | C | |
mmlu_stem | mmlu_stem_5761 | "If music is the medicine of the soul , let it play on," said a famous person. I think he said so because probably he got some help from music. Music has some strange abilities. Medical scientists have found that a person that feels stressed can actually listen to some kind of music and become well. The researchers said that since stress comes as a result of life events such as starting a new family, starting a new business, and starting a new job, one can actually listen to good music and feel good because good music touches the human mind in a positive way. Music helps you to forget the life events that make you worried and remember the important events that once happened in your life. Depression is a disease cause by stress, smoking, social problems and so on. Depression is also caused by problems such as failure in business. Depression may bring us weakness, headache, and loss of concentration. Good music makes one remember happy moments or good days. If you play music about love, it makes you feel like falling in love again though you may have had several upset experiences. And such good feeling make you healthy. Anxiety is another health problem that can be controlled by music. Anxiety is a side effect of some major health problems such as cancer of the liver and cancer of the breast. Good music makes you feel relaxed and removes the pains from these diseases and you feel all right. Good music can send you to sleep. And you need to know that sleep puts your body in a healthy condition. Sleep takes away the effects of stress, depression and anxiety from a person. Good music helps people remove stress mainly by _ . | [
"letting people have a good sleep",
"making people think positively",
"showing something new to people",
"making people focus only on important things"
] | null | B | |
mmlu_stem | mmlu_stem_238 | Which of the following best describes the purpose of cellular respiration? | [
"to provide energy for cell activities",
"to produce sugar for storage in cells",
"to release oxygen for breathing",
"to supply carbon dioxide for photosynthesis"
] | null | A | |
mmlu_stem | mmlu_stem_18006 | Water moves by capillary action through soil from moist areas to dry areas. Which property of water is most responsible for this capillary action? | [
"Water is a polar molecule.",
"Water contains an oxygen atom.",
"Water has a high surface tension.",
"Water has a high specific heat."
] | null | C | |
mmlu_stem | mmlu_stem_21484 | Water solidifies in crevices in the asphalt and splits it apart by | [
"making happy faces",
"occupying more space",
"cheerleaders",
"banana ice cream"
] | null | B | |
mmlu_stem | mmlu_stem_8853 | 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." Which of the following statements about TJ3Sat is TRUE according to the article? | [
"It took a group of students about a decade to build the satellite.",
"Besides TJ3Sat, 28 other small satellites were built by the students.",
"TJ3Sat can receive text messages that the students send into space, which it can change to voice messages and broadcast back to Earth.",
"TJ3Sat is expected to stay i... | null | C | |
mmlu_stem | mmlu_stem_21273 | What anchors plants into the soil are called | [
"a form of webbing",
"Velcro with extra grip",
"the same as an american television miniseries about slavery",
"large anchors made of metal"
] | null | C | |
mmlu_stem | mmlu_stem_20876 | If a raptor loses weight, then it will have an easier time | [
"eating a goldfish cracker",
"building a small house",
"circling way up there",
"leaving home at night"
] | null | C | |
mmlu_stem | mmlu_stem_8122 | Malaria, the world's most widespread parasitic disease, kills as many as three million people every year--almost all of whom are under five, very poor, and African. In most years, more than five hundred million cases of illness result from the disease, although exact numbers are difficult to assess because many people don't (or can't) seek care. It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works. In countries like Tanzania, Mozambique, and the Gambia, no family, village, hospital, or workplace can remain unaffected for long. Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches. As the parasites multiply, they take over the entire body. Malaria parasites live by eating the red blood cells they infect. They can also attach themselves to blood vessels in the brain. If it doesn't kill you, malaria can happen again and again for years. The disease passed on to humans by female mosquitoes infected with one of four species of parasite. Together, the mosquito and the parasite are the most deadly couple in the history of the earth--and one of the most successful. Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control. Studies show that mosquitoes are passing on the virus more frequently, and there are more outbreaks in cities with large populations. Some of the disease's spread is due to global warming. For decades, the first-choice treatment for malaria parasites in Africa has been chloroquine, a chemical which is very cheap and easy to make. Unfortunately, in most parts of the world, malaria parasites have become resistant to it. Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive. If these drugs should fail, nobody knows what would come next. It can be inferred from the passage that _ . | [
"no drugs have been found to treat the disease",
"the alternative treatment is not easily available to most people",
"malaria has developed its ability to resist parasites",
"nobody knows what will be the drug to treat the disease"
] | null | B | |
mmlu_stem | mmlu_stem_5986 | Winter begins in the north on December 22nd. People and animals have been doing what they always do to prepare for the colder months. Squirrels , for example, have been busy gathering nuts from trees. Well, scientists have been busy gathering information about what the squirrels do with the food they collect. They examined differences between red squirrels and gray squirrels in the American state of Indiana. The scientists wanted to know how these differences could affect the growth of black walnut trees. The black walnut is the nut of choice for both kinds of squirrels. The black walnut tree is also a central part of some hardwood forests. Rob Swihart of Purdue University did the study with Jake Goheen, a former Purdue student now at the University of New Mexico. The two researchers estimate that several times as many walnuts grow when gathered by gray squirrels as compared to red squirrels. Gray squirrels and red squirrels do not store nuts and seeds in the same way. Gray squirrels bury nuts one at a time in a number of places. But they seldom remember where they buried every nut. So some nuts remain in the ground. Conditions are right for them to develop and grow the following spring. Red squirrels, however, store large groups of nuts above ground. Professor Swihart calls " _ ". Gray squirrels are native to Indiana. But Professor Swihart says their numbers began to decrease as more forests were cut for agriculture. Red squirrels began to spread through the state during the past century. The researchers say red squirrels are native to forests that stay green all year, unlike walnut trees. They say the cleaning of forest land for agriculture has helped red squirrels invade Indiana. Jake Goheen calls them a sign of an environmental problem more than a cause. When Professor Swihart says "death traps for seeds", he actually means that _ . | [
"red squirrels eat more nuts than gray squirrels",
"gray squirrels and red squirrels will have severe fights",
"nuts above the ground will not develop into plants",
"seeds can be traps for other animals in the forest"
] | null | C | |
mmlu_stem | mmlu_stem_12998 | Some people believe that schools will no longer be necessary in the near future.They said that because of the Internet and other new technology, there is no longer any need for school buildings, classes or teachers.Perhaps this will be true one day, but if the world has no schools, I can 't imagine how our society will be, In fact, we should learn how to use new technology to make schools better.We should invent a new knid of school that is linked to libraries, museums, science centers, labs and even companies.Technological companies should create learning programs for schools.Scientists or professors could give talks through the Internet.TV networks and local stations could develop programs about things students are actually studying in school.Labs could set up websites to show new technology so students could see it on the Internet. Is this a dream? No.There are already many cities where this is beginning to happen.Here the whole city is linked to the Internet, and learning can take place at home, at school, and in the office.Businesses provide programs for the schools and the society.The schools provide computer labs for people without their own computers at home.Because everyone can be on the Internet, older people use it as much as younger ones.And everyone can visit distant libraries and museums as easily as nearby ones.How will this new kind of school change the usual way of learning? It is too early to be sure, but it is very exciting to think about it.Technology will change the way we learn; schools will change as well; and we will all learn something from the Internet. On the Internet, you _ . | [
"can view the new technology",
"can see everything except new technology",
"Can learn everything",
"can do whatever you like"
] | null | D | |
mmlu_stem | mmlu_stem_12871 | A recent survey of 2000 parents in Britain showed that they are often afraid of science questions asked by their curious children only because they have no idea what the answer is. Here is a list of some simple questions that you can ask your parents to see if they know the answers. Q: Why is the sky blue? A: You probably know white sunlight is made up of seven colors. While it moves in a straight line when going through space, it starts to divide as it hits "raised area" in the atmosphere. The ones with longest wavelengths pass through easily. The blue , however , can be taken in by the gas molecules because it has a shorter wavelength , which in turn scatters it in different directions. That's why when you look up at the sky, it appears to be blue. Q:Why does the moon sometimes appear during the daytime? A: The simple answer to that is because just like any other object it is being lit by the sun. As long as it is around 45 degrees or even 90 degrees off the sun, it will receive light and be able to be seen. The only time it is not able to be seen during its 28-day orbit around the earth is when it is right between the earth and the sun. That's because its back , which is not lit by the sun, is facing us. Q: Where do birds/ honeybees go in winter? A: While the bird part is quite easy, since a lot of them get together and travel, the honeybee part is likely to puzzle your parents. It turns out that these busy insects stop being that active when the temperature drops below 50degF. Instead ,they get together in the lower central area of the hive and form a ball around their queen. This helps keep both warm enough to survive the cold winter months. What is NOT explained in the passage? | [
"Why is the sky blue?",
"Why is the moon able to be seen during the daytime?",
"Why do birds travel in winter?",
"Where do honeybees go in winter?"
] | null | C | |
mmlu_stem | mmlu_stem_20501 | A person running away from an attacking black bear will note that as they run faster, the bear | [
"looks minuscule",
"looks average",
"looks bigger",
"looks younger"
] | null | A | |
mmlu_stem | mmlu_stem_12572 | Mr. Green has a small garden in front of his house. There are lots of flowers in it. But he has only a few trees. His neighbor Mr. Black has a garden, too. Mr. Black's garden is smaller than Mr. Green 's garden. He has fewer flowers than Mr Green but more trees. Mr. Brown is Mr. Green's another neighbour. Mr. Brown's garden is the smallest one of the three. He has the fewest flowers of them all, but the weeds in his garden are the tallest. There is always a lot of work to do in his garden, but Mr. Brown doesn't have enough time to work in his garden, so his garden is the worst. There are a lot of weeds in Mr. Brown's Garden because _ . | [
"the garden is too small",
"Mr. Brown doesn't like flowers",
"Mr. Brown is too busy to work in his garden",
"there us always a lot of work in it"
] | null | C | |
mmlu_stem | mmlu_stem_2611 | "You have cancer" are the three words you never want to hear. Unfortunately, over 5, 000 people in North America do hear those words--every single day. Even worse, cancer has become the second leading cause of death for Americans. America's health practitioner , David Brownstein, M. D., has spent much of his medical career studying cancer, and learning the best ways to avoid becoming its victim. And Dr. Brownstein does not shy away from _ Statistics demonstrate we are not winning the war on cancer. Far from it. In fact, cancer death rates have remained nearly unchanged over the last 80 years. Plus, traditional cancer treatments have been a terrible failure. Because the only big winner in the cancer treatment story to date has been the cancer industry's multibillion-dollar profits, Dr. Brownstein has just released a free video documentary revealing some of his startling findings. In this video, you'll discover five specific signs that you will be diagnosed with cancer during your lifetime. Even more important, you'll see: *Seven simple but smart steps to prevent cancer from taking over your body. *How to help your body naturally kill cancer cells. *Easiest ways to avoid known cancer-causing factors. *The little-known relationship between iodine and cancer. *And much, much more... According to Dr. Brownstein, nearly all of us have cancer cells in our bodies at various times during our lives. The trick is to avoid letting those cells increase and defeat the body's natural defenses. The good news is that you and your loved ones do not need to become cancer victims. With the simple methods revealed in Dr. Brownstein's eye-opening video, you can take steps to prevent this deadly disease. Newsman Health managed to bring it directly to you free of charge. Click here to start watching this powerful video about preventing cancer immediately. With so many people dying needlessly, there's no time to waste. What's the purpose of the passage? | [
"To recommend a video.",
"To introduce some doctors.",
"To teach us how to make a video.",
"To give us some tips on dealing with cancer."
] | null | A | |
mmlu_stem | mmlu_stem_14898 | I was being interviewed by a senior manager for a major insurance company. I told him honestly why I wanted the job----I needed to keep my family in Boston. My wife recently died of a heart attack. A job in Boston would help me reduce some of the extreme trauma and pain of the loss for my 16-year-old daughter. It was important for me to keep her in her high school. I could still hardly talk about the loss of my wife. Bruce, the interviewer, was politely empathetic, but he didn't probe any further. He admitted my loss and with great respect, moved on to another subject. After the next round of the interview, Bruce took me to lunch with another person. Then he asked me to take a walk with him. He told me that he, too, had lost his wife. And, like me, he had also been married 20 years and had three children. In his sharing, I realized that he had experienced the same pain as I had -----a pain that was almost impossible to explain to someone who had not lost a beloved one. He offered his business card and home phone number and suggested that, if I need help or just want someone to talk to, I should feel free to give him a call. Whether I got the job or not, he wanted me to know that he was there if I ever needed help. When he had no idea if we would ever see each other again, he helped our family deal with one of the greatest losses. He turned the normally cold business interview into a caring support for another person in need. Which of the following statements is NOT TRUE according to the passage? | [
"Bruce invited the writer to lunch later.",
"Bruce shared his life experience with the writer.",
"Bruce was willing to help the writer.",
"Bruce finally gave the job to the writer."
] | null | D | |
mmlu_stem | mmlu_stem_6596 | When he was a boy, Tim was much influenced by the 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 help 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 saving 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 young man many opportunities to go on working as a life-saver. Which of the following is not true? | [
"during the war, Tim was a surgeon in the Navy.",
"he taught the country people simple facts about medicine in California.",
"after the war, he married the old doctors' daughter.",
"Tim worked as a life-saver after war."
] | null | C | |
mmlu_stem | mmlu_stem_21349 | What requires nutrients to grow and gets nutrients with use of beak apparatus? | [
"dirt",
"birds",
"computers",
"metals"
] | null | B | |
mmlu_stem | mmlu_stem_3437 | Although April did not bring us the rains we all hoped for, and although the Central Valley doesn't generally experience the sound and lightning that can go with those rains, it's still important for parents to be able to answer the youthful questions about thunder and lightning. The reason these two wonders of nature are so difficult for many adults to explain to children is that they are not very well understood by adults themselves. For example, did you know that the lightning we see flashing down to the earth from a cloud is actually flashing up to a cloud from the earth? Our eyes trick us into thinking we see a downward motion when it's actually the other way around. But then, if we believed only what we think and we see, we'd still insist that the sun rises in the morning and sets at night. Most lightning flashes take place inside a cloud, and only a few can be seen jumping between two clouds or between earth and a cloud. But, with about 2,000 thunderstorms taking place above the earth every minute of the day and night, there's enough _ to produce about 100 lightning strikes on earth every second. Parents can use thunder and lightning to help their children learn more about the world around them. When children understand that the light of the lightning flashing reaches their eyes almost at the same moment, but the sound of the thunder takes about 5 seconds to travel just one mile, they can begin to time the interval between the flash and the crash to learn how close they were to the actual spark . What is TRUE about lightning according to the passage? | [
"Only a small number of lightning flashes occur on earth.",
"Lightning flashes usually jump from one cloud to another.",
"Lightning travels 5 times faster than thunder.",
"There are far more lightning strikes occurring on earth than we can imagine."
] | null | D | |
mmlu_stem | mmlu_stem_12462 | I am Jerry. My family is in New York. We have got a big house. There are three bedrooms . One is for my parents. One is for my sister Betty. One is for my brother Tony and me. I haven't got any grandparents, aunts or uncles in my family. My father is forty-three years old. He is a hotel manager. My mother is forty. She is a secretary in a factory. Betty is sixteen years old. Tony is nine years old and I'm twelve years old. We are students. I love my family. There are three _ in the house. | [
"hotels",
"restaurants",
"offices",
"bedrooms"
] | null | D | |
mmlu_stem | mmlu_stem_14995 | Great Sale at Jenny's Come to Jenny's great sale on clothes, things for your room and things for school. We have jackets in black and brown for thirty-five dollars, sweaters in blue and red for fifteen dollars and bags in green and yellow for five dollars. See our great tables, beds and chairs. Get a new bookcase in brown and white for all your books. At Jenny's sale, they are only twenty dollars! Tomorrow is New Year's Day. Come to Jenny's store today! One day only! Everything is at the lowest price. What's the date today? | [
"January 1st",
"December 30th",
"December 31st.",
"December 25th."
] | null | C | |
mmlu_stem | mmlu_stem_22260 | After the Meyer tree's flowers pedals drop you are left with | [
"a bee sign",
"something sweet",
"a bird bath",
"a party"
] | null | B | |
mmlu_stem | mmlu_stem_9041 | California sea lions are the fastest of all the sea lions, reaching speeds of up to 40 kilometers an hour when swimming. Males are much larger than females, measuring 2 to 2.5 meters and weighing 200 to 453 kilograms. Females only measure 1.5 to 2 meters and weigh 50 to 113 kilograms. They can also move fairly well while on land. California sea lions can be found living along the Pacific coast of North America. They prefer to live in waters near rocky and sandy shores. On land, they often gather in large groups as many as 1,000 of them. While at sea, they travel in much smaller groups of around 10 or more. They communicate with one another through a series of sounds. Their diet consists of a wide variety of fish and other sea animals. They are able to hold their breath for up to 10 minutes by slowing down their heart rate, allowing them to hunt for their prey for a longer period of time. They have been known to continuously hunt for up to 30 hours at a time, with their eyesight and hearing playing an important part in finding their food. Being so large, they do not have that many natural predators that they need to be on the lookout for. Eleven months after getting pregnant, the female will give birth to one baby on land. If the baby can survive long enough, they can live to be 20 to 25 years old. California sea lions are not listed as an endangered species. This is largely because of laws such as the US Marine Mammal Protection Act of 1972. Hopefully such acts will continue to show results. What do we know about California sea lions? | [
"They weigh at least 113 kilograms.",
"They swim faster than any other sea animal.",
"Males are much larger than females.",
"They usually move very slowly after leaving the sea."
] | null | C | |
mmlu_stem | mmlu_stem_727 | Bluebirds prefer to live near open, grassy places. Where would you most likely find a bluebird? | [
"a dam",
"a beach",
"a ball field",
"a parking lot"
] | null | C | |
mmlu_stem | mmlu_stem_16983 | There are many different kinds of parrots. Some are quite big. Others are small. Many people like them because they often have beautiful colours, and because they can "talk". No one knows why parrots can talk. Most birds cannot talk. Some people say that parrots can talk because they have big, thick tongues . But some other birds that can talk do not have big, thick tongues, and some birds that cannot talk have big, thick tongues. Parrots do not usually know what they are saying when they talk. They are only making sounds. However, they know when to say some words, such as "Hello" and "Goodbye", and they usually know and can say people's names. Most parrots come from hot countries, but they can live anywhere. People like parrots, because _ . | [
"they often have beautiful coulours",
"they can \"talk\"",
"they can dance",
"A and B"
] | null | D | |
mmlu_stem | mmlu_stem_17292 | The pull of gravity on Earth is caused by | [
"air pressure.",
"the mass of Earth.",
"volcanoes erupting.",
"Earth's orbit around the Sun."
] | null | B | |
mmlu_stem | mmlu_stem_18360 | The action that results when waves made in a pond strike the edges and bounce back is known as | [
"amplitude.",
"frequency.",
"vibration.",
"reflection."
] | null | D | |
mmlu_stem | mmlu_stem_19834 | The amount of transpiration is lower in | [
"summer",
"fall",
"winter",
"spring"
] | null | C | |
mmlu_stem | mmlu_stem_15982 | Nowadays, many children spend hours a day looking at computer screens or other digital products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome . Nathan Warford is an optometrist in the US. He says he has seen more children having eye problems. "More children come into my office because their parents have noticed that they have headaches or red eyes, or because their degree of short-sightedness appears to be increasing very fast and they're worried," he said. Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don't tell their parents, because they don't want their games or the computer to be taken away. Another part of the problem is that people blink less often when they look at the screen.A person who uses a computer or a digital product blinks about a third as much as we normally do in everyday life. If eyes can't stay wet or are too tired, they will not be protected like normal. People blink about _ as they normally do when they use computers. | [
"a third as much",
"two thirds as much",
"half as much",
"as much"
] | null | A | |
mmlu_stem | mmlu_stem_22341 | Gravity lessens as you go | [
"alongside a friendly black hole",
"away from a planet",
"closer to a planet",
"closer to the sun"
] | null | B | |
mmlu_stem | mmlu_stem_3121 | Now let's look ourselves as a species in relation to ecosystem balance.Modern scientists believe that humankind, like other animals, evolved through millions of years of changes and adaptations to the environment and that our most direct evolutionary ancestor was probably an earlier species of the primate(monkey, ape) group. Despite this similarity with other creatures, however, the evolution of humankind differs from that of other species in one important and unique way. In other species, evolution has led to specialization, both in the species abilities and in its place within the environmental structure. For example, the giraffe is much adapted to feeding on treetops, but it is also specialized and thus limited to feeding on trees and shrubs. Only with great difficulty can it bend down to graze on the ground. Similarly, the anteater is extremely well adapted to eating ants but is unable to catch or eat other animals. The same is true for countless other species. For humankind it is opposite. Our evolution had led to a very generalized ability. Our highly developed intelligence and ability to make and handle tools mean that we can do almost anything. Humans evolved in such a way that we are able to move into every environment on Earth and even into space. No natural competitor offers great resistance, and other natural enemies such as disease have been controlled. Said another way, we see in humankind a great imbalance between biological potential and environmental resistance. The result is the rapidly increasing world population, frequently referred to as the population explosion. Further, to support our growing population, natural ecosystems are being increasingly displaced by human habitations, agriculture, and other human supporting activities. According to the passage, primate includes such animals as _ . | [
"monkeys and anteaters",
"tigers and apes",
"apes and monkeys",
"monkeys and giraffes"
] | null | C | |
mmlu_stem | mmlu_stem_15785 | Dear Jenny, Please take these things to your brother: his math book, baseball, notebook, CDs, and video tape. The math book is on the dresser. The baseball is under the bed. The notebook is on the bed. The CDs are in the drawer. The video tape is on the table. Thanks! Mom The _ are in the drawer. | [
"rulers",
"books",
"CDs",
"pens"
] | null | C | |
mmlu_stem | mmlu_stem_22448 | A cat and a snake are both predators for several of the same animals. If there are only seven mice in a habitat shared by a cat and a snake, there will be | [
"a shared meal between them",
"a war between mice and cats",
"pressure on them to get the mice before the other does",
"enough for each of them to have ten mice"
] | null | C | |
mmlu_stem | mmlu_stem_1665 | Johnny walked toward the time machine. His adult neighbor, the scientist, had asked him to watch it for him for the weekend. He had also asked Johnny not to touch it. But it was a time machine. Johnny had to see it. The machine was big and silver and shiny and looked like an ice cream cone that had been dropped. It had a square hole as tall as Johnny and it hummed like a fridge. Johnny took a deep breath and stepped inside. Just a peek, he thought. There were three buttons inside. One said "past," and one said "present." Another said "space." Johnny looked at the buttons. He looked at the buttons some more. He waited and without thinking, his arm jumped out in front of him. He pushed the button that said "past." There was a bright light! And bam! Johnny stepped out of the machine. It was raining, and there were many strange looking trees. The air was warm. The dirt below was muddy. He took a deep breath. "So this is the past," Johnny said. Just then he heard a bump. And another one. The ground shook. The bumps got louder and the ground shook harder. A tree fell. Johnny heard a roar. Two more trees fell. Suddenly, Johnny saw it: A Tyrannosaurus Rex! Johnny was so scared he couldn't breathe. The T. Rex looked up, and left, and right. He sniffed the air and leaned down. He didn't seem to see Johnny. Then Johnny sneezed. And the T. Rex started walking towards him. Faster and faster. Bump. Bump bump. Bumpbumpbumpbump until he was running. Johnny jumped back into the time machine and pressed "present." There was a bright light and Johnny was back home. He took a deep breath. He was home. "Phew," he said. Next time, he would listen to his adult neighbor, he thought. What did the time machine look like? | [
"A silver ice-cream cone with a round hole",
"A silver triangle with a square hole",
"A silver ice-cream cone with a square hole",
"A silver triangle with a round hole"
] | null | C | |
mmlu_stem | mmlu_stem_8190 | A villa designed to resist earthquakes with "self-healing" cracks in its walls, thanks to nanotechnology applications with self-healing polymers , is to be built on a Greek mountainside. The villa's walls will include special particles that turn into a liquid when squeezed under pressure, flow into cracks, and then harden to form a solid material. The NanoManufacturing Institute (NMI), based in Leeds University, will play a key role in an EU project to construct the home by December 2010. The project, called "Intelligent Safe and Secure Buildings" (ISSB) is funded under the EU's Sixth Framework program. This potentially life-saving scheme is led by German building manufacturer Knauf. The villa will be built in Amphilochia, in western Greece, where Knauf currently runs a manufacturing plant. If the experiment is successful, more tremor-resistant homes could be built in earthquake zones across the globe. NMI chief executive Professor Terry Wilkins said, "What we're trying to achieve here is very exciting. We're looking to use polymers in much tougher situations than ever before on a larger scale." Monitors contained in the villa's walls will be able to collect vast amounts of data about the building over time. Wireless sensors will record any stresses and vibrations, as well as temperature, humidity and gas levels. The walls are to be built from new load-bearing steel frames and high-strength gypsum board. Prof Wilkins said, "If there are any problems, the intelligent sensor network will be able to alert residents immediately so they have time to escape. If whole groups of houses are so constructed, we could use a larger network of sensors to get even more information. If the house falls down, we have got hand-held devices that can be used over the ruins to pick out where the embedded sensors are hidden to get some information about how the villa collapsed. Also, we can get information about anyone who may be around, so it potentially becomes a tool for rescue." It can be inferred from the passage that tremor-resistant home _ . | [
"is still being tried out",
"is already under construction",
"has been in wide use",
"will be put into wide use soon"
] | null | A | |
mmlu_stem | mmlu_stem_363 | All plants and animals have mechanisms that | [
"transport nutrients",
"perform photosynthesis",
"regulate nerves",
"produce flowers"
] | null | A | |
mmlu_stem | mmlu_stem_8185 | Miss Gogers taught physics in a New York school. Last month she explained to one of her classes about sound, and she decided to test them to see how successful she had been in her explanation. She said to them, "Now I have a brother in Los Angeles. If I was calling him on the phone and at the same time you were 75 feet away, listening to me from across the street, which of you would hear what I said earlier, my brother or you and for what reason?" Tom at once answered, "Your brother. Because electricity travels faster than sound waves." "That's every good," Miss Gogers answered; but then one of the girls raised her hand, and Miss Gogers said. "Yes, Kate." "I disagree," Kate said. "Your brother would hear you earlier because when it's 11 o'clock here it's only 8 o'clock in Los Angeles." Tom thought that electricity was _ . | [
"slower than sound waves",
"faster than sound waves",
"not so fast as sound waves",
"as fast as sound waves"
] | null | B | |
mmlu_stem | mmlu_stem_7413 | Greg Lyons waited nine years for the opportunity to donate bone marrow . The man had to wait an additional year to finally meet the little girl whose life his donation helped save. That meeting finally too place earlier this fall in the prefix = st1 /Charlotte,Mich, home of Alissa Christie. Lyons first volunteered to donate bone marrow while giving blood for a boy in need. But nine years passed and Lyonsadmittedly forgot that he was on the donor list--until he got a call in May 2005. Lyons was informed that he was a perfect one-in-seven-million match for a 7-year-old girl. For the next seven weeks, Lyonswent through a series of tests- including several blood tests as well as a lung x-ray to determine whether he was fit to donate. On July 7, 2005, Lyons was checked in to WestPennHospital, where the bone marrow was taken. One half liter of bone marrow was taken during the two-hour operation. The bone marrow was then immediately given to the girl. In August, Lyonsreceived a telephone call from the mother of the girl, Monica Christie, who gave him permission to meet the girl "Her mother cried on the telephone," Lyonssaid. Late last month, Lyons made the 7-hour drive to Michiganto meet Alissa, who is now 8 years old and said he planned to stay in touch with the family. "One chapter ended and another chapter began," said Lyons. According to the passage, which of the following is TRUE? | [
"Lyons volunteered to donate bone marrow because he was sympathetic with Alissa.",
"Lyons had already donated bone marrow to a boy in need.",
"The bone marrow, once taken out, was given to Alissa without delay.",
"Alissa and he mother made a long journey to meet Lyonsin order to express their thanks."
] | null | C | |
mmlu_stem | mmlu_stem_12595 | Dear Anna, It is nice to see the photo of your room. Here is a photo of my room. These are my bed and my desk. My clock and some books are on the desk. Sometimes the books are on the bed. I like _ books on the bed. Oh, that is my hat on the bed. It is yellow. My quilt is yellow, too. My schoolbag is on the sofa. It is green. I take it to school every day. Yours, Mona . The letter is from _ . | [
"Anna",
"Mona",
"Allan",
"Emma"
] | null | B | |
mmlu_stem | mmlu_stem_16835 | Do you know Fei Junlong and Nie Haisheng? Fei Junlong was born in 1965. He is a Chinese astronaut selected as a member of the Shenzhou program. He was born in Jiangsu and joined the People's Liberation Army Air Force in 1982 at the age of 17. And since then he has only returned home six times. As a fighter pilot , he was selected to an astronaut in 1998. He married Wang Jie in 1991 and has one son. Nie Haisheng was born in September 1964. He is also a Chinese astronaut selected for the Shenzhou program. He is from Hubei. After graduating from high school he joined the People's Liberation Army Air Force, and became a fighter pilot. In 1998 he was selected for the astronaut program. He was one of the three astronauts who were in the final group to train for the Shenzhou 5 fight. Yang Liwei was also picked out for the flight, with Zhai Ahigang. On September 23,2005 it was reported that Zhai and Nie would be one of the three pairs of astronauts who would be in the final training for Shenzhou 6. But in the end, Fei and Nie were chosen, and Zhai missed his chance to space again. Nie Haisheng got married to Nie Jielin and has an 11-year-old daughter. When did Nie join the army? | [
"In 1982.",
"In 1998.",
"In 1991.",
"After his graduation from high school."
] | null | D | |
mmlu_stem | mmlu_stem_13366 | Not long ago, the only time you could see a robot was when you were reading a novel or watching a movie such asStar Wars . Today, however, a lot of things in science stories have been science facts. Robots are starting to appear in our everyday lives. These robots have different sizes, shapes, and colors. But they all have the same type of man-made "brain". Leading the robot revolution are industrial robots that work in factories. Industrial robots can do different kinds of jobs that are often boring and sometimes dangerous. Robots are also coming to American homes, though not as quickly as they are entering factories. These robots aren't as friendly and bright as those you saw in Star Wars.But, their makers say, today's home robots "walk", sense objects in their way (and sometimes knock into them), and even carry objects (which they sometimes drop). Well, nobody is perfect. We may laugh at home robot today, but some day they may see and hear better than humans do. We humans can only see certain wavelengths of light, and hear certain sounds. That's because the abilities of our eyes and ears are limited. Robots, however, need not have the same limits as we have. Robot may also be equipped with devices that pick up information humans can't. To understand what their sensing devices pick up is a hard job. Remember, man--made brains handle information, including all kinds of data, as zeroes and ones. Imagine the difficulty in trying to explain to a robot what a football looks like--using only zeroes and ones. According to this passage, present home robots _ . | [
"are better than human in seeing and hearing",
"are as capable as those in Star Wars",
"can pick up objects more quickly than humans",
"sometimes perform wrong actions"
] | null | D | |
mmlu_stem | mmlu_stem_21367 | What product eventually will become human waste? | [
"stars",
"unicorns",
"black holes",
"corn"
] | null | D | |
mmlu_stem | mmlu_stem_6865 | Wherever life takes you after A-level results day, it's likely to bring increased independence. That means it's time to take care of yourself. Students, take note. When you arrive at university, make sure you register with a doctor near your term-time address. If there is a university doctor at your institution, they will be your best choice. If not, ask student services for a recommendation. Once registered, do everything you can to make sure you never have to pay them a visit. Don't take unnecessary health risks. Cook meat thoroughly. Throw food away if it's out of date. Clean up after yourself. Food poisoning can be harmful, but it's easy to avoid if you pay due care and attention. University often brings a certain lifestyle, and while that's usually a whole lot of fun, it can quickly tip into a whole lot of sorrow. Know your limits when it comes to alcohol. Habitual drinking can be dangerous, and while every student will have nights of excess, these should be the exception, not the norm. Look out for your friends, too. If you're worried about alcohol or substance abuse, visit alcoholics-anonymous.org.ukorukna.orgfor free and confidential support. Anyone living with teenagers and young adults, especially in environments such as halls of residence, must accept that germs will be shared. Bugs and colds will spread like wildfire. Living communally brings certain health risks, and _ is probably the most serious of these. Symptoms include a rash, stiff neck and an aversion to bright lights. It's rare, but seek immediate medical attention if you're concerned (meningitis.org). Gappers, meanwhile, may need to consider specific health risks. If you're planning a trip abroad, especially in rural areas of poor countries, make sure you get the necessary vaccinations in good time before you leave. Research these at www.netdoctor.co.uk. You should be able to get everything you need from your doctor, although you may have to give them notice and you may have to pay, even on the NHS . If you also need to take medication while you're away, such as anti-malarials, do it faithfully. On a general note, whoever you are, wherever you are and whatever you do with your time, never walk alone at night, especially in quiet and badly lit areas. Always carry your phone. Never get in an unlicensed cab. Be careful who you trust. Respect your new independence, and keep yourself safe. If students want to remove their worries about certain symptoms, they can visit _ . | [
"www.netdoctor.co.uk",
"ukna.org",
"alcoholics-anonymous.org.uk",
"meningitis.org"
] | null | D | |
mmlu_stem | mmlu_stem_14307 | Today people are paying more and more attention to improving their health through sports and exercise. But some of them have some wrong ideas about it. A plate of chicken is a good meal before games because it has much energy. In fact, the best meal before games should have carbohydrates . Foods like potatoes, bread, bananas are rich in it, chicken and meat are not. Carbohydrates are the best and most easily used forms of energy. The energy that you get for today's game is from what you ate yesterday. The best time to exercise is early in the morning. Morning is a good time to exercise, but it may not be suitable for you. If an afternoon or evening period suits you, and you enjoy the feeling of getting healthier, you can choose any time to exercise. There is no fixed time for you to exercise. If you drink water when you exercise, you'll get headaches and feel tired. The fact is that you must have some water during breaks when you exercise. And after exercising, you must have enough water. If you don't drink enough water, then you'll probably get headaches and feel tired. Exercising the same body part every day is the fastest way to improve strength. False! Exercising the same body part every day is the fastest way to cause problems. To improve strength, you want to work your muscles hard, but then you need to give those muscles a day of rest. Too much exercise can cause serious problems to muscles. Girls who do strength training will make their muscles big. Wrong! We usually connect those big muscles with bodybuilders , but girls don't have enough male hormone to make their muscles big like men. Strength training is a good way to make their muscles strong for girls. According to the passage, which of the following is NOT true? | [
"Afternoon is the best to exercise as it's cool.",
"You can exercise at any time.",
"It's good for both girls and boys to do strength training.",
"You should eat food full of energy today for tomorrow's game."
] | null | A | |
mmlu_stem | mmlu_stem_3228 | This is a doubtful age, but although our faith in many of the things has weakened, our confidence in the curative (,) properties of the bottle medicine remains the same. This modern faith in medicine is proved by the fact that the annual drug bill of the Health Services is increasing to huge figures and shows no signs at present of stopping to rise. The majority of the patients attending the medical out-patients departments of our hospitals feel that they have not received enough treatment unless they are able to carry home with them some tangible curative in the shape of a bottle of medicine, a box of pills, or a small jar of ointment , and the doctor in charge of the department is only too ready to provide them with these requirements. There is no quicker method of treating of patients than by giving them what they are asking for, and since most doctors in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet, right living, and the need for abandoning bad habits etc. Nor is it only the ignorant and ill-educated person who has such faith in the bottle of medicine. It is said that Thomas Carlyle (a famous Scottish writer), when he heard of the illness of his friend, went off immediately to visit him carrying with him in his pocket what remained of a bottle of medicine formerly used for a slight illness of Mrs. Carlyle's. Carlyle was entirely ignorant of what the bottle in his pocket contained or the nature of the illness from which his friend was suffering, but a medicine that had worked so well in one form of illness would surely be of equal benefit in another, and comforted by the thought of the help he was bringing to his friend, he rushed to Henry Taylor's house. History does not relate whether his friend accepted his medical help, but probably he did. The story about Thomas Carlyle is used to illustrate that _ . | [
"a medicine that will cure one illness is not necessarily good for another",
"Thomas Carlyle was ignorant",
"Even educated people can be misled into believing that one can't be cured by medicine",
"Educated people may also have confidence in the bottle of medicine"
] | null | D | |
mmlu_stem | mmlu_stem_16519 | If we find a bird nest, we will have a good place of observing and knowing about birds. Birds sit on eggs and take care of their baby birds from April to June. Because the baby birds are too young to leave the nest, mothers often leave and come back to the nest during the time to look for food. So it is good to observe birds. When we observe birds, we'd better hide ourselves in a close place to the nest, and it's better to use binoculars . But how to make a bird nest? It's very easy. If you want to make one, please follow these: Making a nest: A good nest must be very fine, strong, thick and easy. a) Each nest must have six boards. Don't make the boards too slippery. [:Zxxk.Com] b) Dig a small hole in the front of the nest as a door. The "door" is from 3cm to 5cm. So the bird can fly in or out easily. c) Make sure the rainwater doesn't go into the nest. d) One piece of the boards should be easy to open. e) Please don't forget to color the nest. When we're watching birds, we have to _ . | [
"look after the birds more often",
"use the binoculars to catch the birds",
"hide ourselves to make the birds do everything as usual",
"catch the birds at last"
] | null | C | |
mmlu_stem | mmlu_stem_17124 | Which of these would help to prevent infections from occurring in small cuts and scrapes? | [
"apply a cold ice pack",
"raise the injured area",
"apply pressure to stop bleeding",
"wash the area with warm, soapy water"
] | null | D | |
mmlu_stem | mmlu_stem_10091 | When Geoff Marcy was 14, his parents bought him a telescope. Every night, he would go onto the roof outside his window to see the wonders of the sky. "What excited me most was whether there were planets in other solar systems where life might exist," he says. "I decided to try to find planets orbiting other stars like our Sun." And he did. "My fellow researcher, Paul Butler, and I found our first planet in 1995," Dr. Marcy says. "We worked for ten years without finding anything! _ and our patience paid off." Since then, the two scientists have discovered 65 of the more than 100 planets found orbiting other stars. Dr. Marcy and Dr. Butler also spotted the first "family" of three planets. In June 2002 they announced another discovery: a Jupiter-like planet orbiting star 55Cancri. At first, the two researchers found only planets that orbit close to stars. Recently, the scientists found planets farther out. The planet orbiting 55Cancri is a major breakthrough: it is the first sighting of a large gas planet about same distance from the star as Jupiter is from the Sun. Why is this important ? Scientists think that life on Earth may exist because of two special features in our solar system. The first is Jupiter. "Because it's so big, Jupiter pulls comets and asteroids , or they all come and hit the Earth." Dr. Marcy explains. "Without Jupiter , life on Earth would likely have been destroyed." A second feature is that Earth is a rocky planet where liquid water, which is necessary for life , can exist. Unlike gas planets, rocky planets like Earth have surfaces where water can gather in pools and seas, which may support life. A huge space exists between the Jupiter-like planet and two other planets that lie close to 55Cancri. Is there an Earth-like planet in the space, too small for us to notice? If so, says Dr. Marcy, "We would have two striking similarities to our solar system: a Jupiter-like planet and an Earth-like planet. And there may be life!" Dr. Marcy and Dr. Butler began to find new planets in _ . | [
"1995",
"1985",
"2002",
"1981"
] | null | B | |
mmlu_stem | mmlu_stem_10603 | If it really is what's on the inside that counts, then a lot of thin people might be in trouble. Some doctors now think that the internal fat surrounding important organs like the heart liver could be as dangerous as the external fat which can be noticed more easily. "Being thin doesn't surely mean you are not tat, said Dr Jimmy Bell at Imperial College. Since 1994, Bell and his team have scanned nearly 800 people with MRI machines to create "fat maps" showing where people store fat. According to the result, people who keep their weight through diet rather than exercise are likely to have major deposits of internal fat, even if they are slim. Even people with normal Body Mass Index scores can have surprising levels of fat deposits inside.Of the women, as many as 45 percent of those with normal BMI scores (20 to 25) actually had too high levels of internal fat.Among men, the percentage was nearly 60 percent. According to Bell, people who are fat on the inside are actually on the edge of being fat.They eat too many fatty and sugary foods, but they are not eating enough to be fat.Scientists believe we naturally store fat around the belly first, but at some point, the body may start storing it elsewhere. Doctors are unsure about the exact dangers of internal fat, but some think it has something to do with heart disease and diabetes .They want to prove that internal fat damages the body's communication systems. The good news is that internal fat can be easily burned off through exercise or even by improving your diet."If you want to be healthy, there is no shortcut.Exercise has to be an important part of your lifestyle, " Bell said. Doctors have found _ . | [
"the exact dangers of internal fat",
"being slim is not dangerous at all",
"internal fat is the cause of heart disease",
"being slim doesn't mean you are not fat inside"
] | null | D | |
mmlu_stem | mmlu_stem_21921 | You can work longer when | [
"Autumn changes to Winter",
"spring changes to summer",
"tree leaves start falling",
"the first snow starts falling"
] | null | B | |
mmlu_stem | mmlu_stem_1765 | Nature Love Yolanda loves nature. She loves trees, flowers, grass, singing birds, the sky, and even the wind. She spends a lot of time lying on the grass, looking at the sky, and listening to the birds. One of Yolanda's favorite things to do is to look at the shapes of the big, fluffy clouds. "That one looks like a flower. And that one looks like a boat. There's one that looks like my dog!" she says to herself. She is always surprised and happy to find a new shape. Yolanda's most favorite thing to do is to look at the flowers and bugs that visit her place. She watches and studies all the butterflies, bees, ants, spiders, and even worms that are in her backyard. Yolanda has a wonderful backyard. Her mother has a big, beautiful garden that she helps to take care of. This is how Yolanda is learning to grow and take care of plants. The garden makes the whole yard look beautiful and smell wonderful. And the garden brings in all kinds of amazing birds and insects. Yolanda has lots of pictures of the birds and bugs that come into her backyard. She feels like a kid scientist. Someday, she wants to become a real scientist. Then she can learn all about plants, bugs and nature. What does Yolanda want to become someday and why? | [
"A real scientist, so she can learn all about building houses and backyards.",
"A real scientist, so she can study medicine.",
"A real scientist, so she can learn all about plants, bugs and nature.",
"A gardener, so she can learn all about plants, bugs and nature."
] | null | C | |
mmlu_stem | mmlu_stem_14281 | The animal kingdom has a new member. On September 12, 2012, researchers made a report to the world that they discovered a new species of monkey. It is called the lesula. And it is only the second monkey species discovered in 28 years. Scientists first saw the lesula in June, 2007 in Congo, a country in Africa. The lesula lives in the rain forests. The monkey was first found as a pet in a local family. When researchers found it, the family told them that they caught the monkey in the wild and then kept it as a pet. The scientists have compared the lesula to the owl-faced monkey. The owl-faced monkey gets its name for having a long nose and a face that looks like an owl . The lesula and the owl-faced monkey are similar in size and both have a stripe on their nose. This shows the lesula and the owl-faced monkeys are close relatives, but different species. Scientists say the lesula usually weighs about twelve pounds. It has long blond hair. It eats like a vegetarian . Scientists say it is important to protect African rain forests because there may be other new species like lesula to be discovered in the future. From the passage we know that _ . | [
"it was the 29 thlesula that was found",
"the lesula mainly eats small animals",
"both the owl-faced monkey and the lesula have short blond hair",
"the lesula and the owl-faced monkey look aimilar, but different species"
] | null | D | |
mmlu_stem | mmlu_stem_695 | A tropical rain forest contains many tall trees. Smaller plants with large leaves grow at the base of the tall trees. The large leaves are most likely an adaptation of the plant due to which condition? | [
"lack of sunlight",
"lack of oxygen",
"lack of water",
"lack of food"
] | null | A | |
mmlu_stem | mmlu_stem_10712 | Can you imagine traveling to work in a one-man submarine? Scientists believe that someday one-man submarines will be as numerous as automobiles today. One says," One day soon, men will walk on the ocean floor as they do on the street. " Perhaps during your life time, people will travel, work and live under the sea. Ships carrying oil and articles of trade will move beneath the ocean. Passenger ships will be built to travel underwater, where storms cannot delay them or make people seasick. Special underwater ships will be designed for mining, fishing, and exploring unknown areas. For military use, there may be submarines that can fly and then dive underwater to approach the battle area without being seen. First, however, the human problems associated with living in the ocean will need to be studied in detail. Many of these problems are the same as the problems of living in outer space: pressure, lack of oxygen, and weightlessness. Already scientists have begun to study these problems. In 1963 and 1964 scientists and Navy divers lived and worked underwater for several days in two projects which were called Sealab I and Sealab II. The Sealab II experiment kept the scientists and divers 215 feet below the surface for thirty days, studying marine biology, temperature, pressure, currents, and ocean bottom geology. Many puzzling questions remain unanswered, however. Man's warm blood makes it difficult for him to live long in the sea without some kind of warmth. Can our blood be changed to fit new water surroundings? What will happen to our muscles if we live in the water very long? Will they become soft away from our usual land existence? Will bones become weak and our blood pressure change? Scientists are searching for answers. By studying plants and animals deep in the ocean, scientists may find a cure for some of our most serious human diseases. We may learn to use plants to increase our world food supply. Engineers may learn to use the power of the sea by building huge walls to catch the force of the tides. To become used to living in the sea, we should try to _ | [
"increase the amount of our blood",
"keep our blood warm",
"soften our muscles",
"warm our bones"
] | null | B | |
mmlu_stem | mmlu_stem_9340 | For Robert Valderzak of Washington D.C.,Tuesday's earthquake was a miracle . Ever since he fell and got his skull broken on Father's Day,75-year-old Valderzak had suffered severe hearing loss. But after the 5.8 quake, he could hear everything. Valderzak was chatting with his daughter and three sons when the quake hit D.C.'s Veterans Affairs Hospital,where he is batting cancer. "It shook m terrible--right out of the bed," said Valderzak."But after that it stopped.And my son talked to me, and I could hear his voice." Tests confirmed Valdezak's significant hearing improvement.But his doctors think they have a medical explanation for the "miracle". "He.had conductive hearing loss,caused by a liquid in his middle ear, as well as loss due to nerve damage,"said Dr.Ross Fletcher,chief of staff at the VA Hospital. "A combustion of a drag he was taking and the earthquake event itself likely led to him losing the liquid and listening back his hearing." Dr.Jennifer Smullen of the Massachusetts Eye and Ear Infirmary said the shaking itself might not have been enough to clear the fluid from Valderzak's inner ear. "But if somebody was suddenly surprised, and shouted out,sometimes that's enough to clear some fluid out from the ear drum."she Bald. Valderzak had adjusted to his hearing loss with the help of a special microphone and some training in _ .But the situation was far from satisfactory. "The devices helped,but by the time I got them all connected up,everyone had left and I was talking to myself,"he said,adding that lip reading meant he could only talk to one person at a time. But now he can talk to all four of his kids again. What was Valderzak doing when the earthquake happened?. | [
"He was in hospital end talking with his children.",
"He was visiting a hospital with his children.",
"He was being interviewed by ABCNnews.com.",
"He was receiving treatment for his hearing loss."
] | null | A | |
mmlu_stem | mmlu_stem_14928 | Good morning, class! We know that there are too many net bars around us. The Internet is popular and it makes our lives colorful. Many of us like going online very much because we can learn how to use the computer and get more information from the Internet. We can learn English. We can read some good newspapers and magazines. It can make us clever in playing computer games. We can send E-mails to our friends quickly. We can chat freely online with our friends. It can help us get in touch with people from all over the world. But some students spend too much time in playing computer game and some stay in the net bars all day and all night. Teenagers even get to have boyfriends or girlfriends online. They write too many letters to each other. It takes them to much time to chat online so they do worse and worse in their lessons and they don't study well any more. I think we mustn't get online when it is time for us to study. We can do it in summer or winter holidays. We should get online with adults --our teacher or parents. At the same time, if we have lots of free time, we can do some out-of-class activities at school. We usually have activities from 4:50 to 5:50 in the afternoon. We have different kinds of activities. If you are interested in sports, you can play basketball or football. We can go to the English Corner. We can practice talking in English there. We hope we can spend more time on our subjects or on such activities that we can learn a lot from and less time on the Internet. Thank you for listening to me. That's all. Which of the following is NOT right? | [
"There are too many net bars in the cities.",
"We can learn English from the Internet.",
"We mustn't get online when we are studying at school.",
"We cannot do out-of-class activities from 4:50 to 5:50 p.m."
] | null | D | |
mmlu_stem | mmlu_stem_4772 | For better eyesight, doctors advise limiting the hours of screen time and encourage having enough eye resting time. However, another study shows that sitting in front of computer or TV screens for long hours is not the only reason formyopia . An Australian research team studied young children in Sydney and Singapore to find the reasons for myopia. The research team found that theprevalence of myopia among children in Sydney was lower than children in Singapore, even though they spent more time in front of computer and TV screens. The major finding is that children in Sydney spend longer hours on outdoor activities than those in Singapore. Indoor and outdoor sports activities both make the eyes focus on more distant objects, which prevents the eyes from changing shape. But outdoor activities may better help avoid myopia than indoor sports activities. Jane Gwiazda, who does research in sight problems, says: "Natural light is good for eye growth. And extra vitamin D from the sun might contribute to eye growth." Many doctors suggest that every child get its first eye test done when he/she is about two and half years old, and even if his/her sight seems perfect. It is necessary for myopic children to wear glasses to prevent headaches, trouble reading or injuries. It is also important that schools invite doctors to test their students' eyes. If that is not possible, school teachers should at least encourage parents and children to have regular eye examinations and wear glasses. And parents should remember not only to limit the total screen time for their children, but also to encourage them to spend time outdoors. What's the aim of the study by the Australian research team ? | [
"To find the reasons for myopia.",
"To find the ways to treat myopia.",
"To prove the bad effects of myopia.",
"To prove the prevalence of myopia."
] | null | A | |
mmlu_stem | mmlu_stem_18023 | By attaching to sharks, remora fish eat the scraps of food left behind when the sharks feed. If remoras were not able to attach to sharks, they would most likely | [
"attach to boats.",
"not be able to survive.",
"find another source of food.",
"not need to eat anymore."
] | null | B | |
mmlu_stem | mmlu_stem_22375 | When fish travel in the opposite direction of flow they are going to | [
"spawn",
"party",
"site see",
"start over"
] | null | A | |
mmlu_stem | mmlu_stem_19269 | What is a source of energy for animals? | [
"rocks",
"plastic food",
"metal",
"nutriment"
] | null | D | |
mmlu_stem | mmlu_stem_15400 | Mr. Jenkins is fifty years old. He has taught math in a middle school for twenty-six years. He works hard and always come to his office on time. He hopes his students can be honest and is strict with them. Some of his students become famous persons,but they still remember him and often write to him. Of course the old man is proud of it. This term he began to teach Grade One. Some of the new students were told about him, but the others didn't know him well. He told them how to be an honest person. He gave them several examples and said,"I hate telling a lie most." Before class was over,he told all his students to finish Exercise 8 in Unit 1.The next morning,as soon as he came in the classroom,he asked,"Who's finished Exercise 8? " A few students put up their hands. He shook his head and said. "Open your workbooks and see if there's Exercise 8 in Unit 1 or not." The students had a look at their books and their faces turned red at once. Which sentence is Not True? | [
"This term Mr. Jenkins began to teach Grade One.",
"All the new students knew him well.",
"He told the students he hated telling a lie most.",
"Not all the students put up their hands."
] | null | B | |
mmlu_stem | mmlu_stem_3476 | Although similar in appearance to hyenas , African wild dogs are nevertheless true wild canine . They are a mixture of black, yellow, and white in such a wide variety of patterns that no two individuals look exactly alike. African wild dogs are widely distributed across the African plains but they do not live in jungle areas. They are social animals, living in groups of usually from 2 to 45 individuals. A hierarchy exists within the group, but the animals are friendly to one another. The young and the infirm are given special privileges within the group. African wild dogs use their sense of sight, not smell, to find their prey. They can run up to 55 km/h for several kilometers. In eastern Africa, they mostly hunt Thomson's gazelles, but they will also attack calves, warthogs, zebras, impalas, and the young of large antelopes such as the gnu. Growing human populations have decreased or degraded the African wild dog's habitat and also diminished their available prey. Road kill and human persecution have also had a negative impact on African wild dog populations. This species is also _ to a variety of diseases such as distemper, which is controlled in domestic .dogs. Conservation of the African wild dog's natural habitat must have the highest priority, as these dogs suffer in habitats modified by human intrusion . What can we know about African wild dogs? | [
"In a pack there may be about 90 wild dogs and no leader.",
"There are no such wild dogs that are different.",
"African wild dogs can run at a speed of about 15 m/s for a long distance.",
"All African wild dogs kill zebras, impalas, and antelopes as their food."
] | null | C | |
mmlu_stem | mmlu_stem_12491 | A 13-year-old American has made a cheap machine that can help blind people read. The blind can read by using _ - a system of small bumps that the blind touch to read the letters. The machine that makes these small bumps usually costs at least $2,000. It is called Braille writer. The American schoolboy, Shubham Banerjee, made a new Braille writer from a Lego tool that lets people create robots. Banerjee has called his new machine the Braigo - a combination of the words Braille and Lego. It costs just $ 350. It works by changing electronic text into Braille and then printing it using a computer or mobile machine. Banerjee designed his Braigo last year for a school science exhibition. Since then, he has caught the interest of Silicon Valley in the USA. The big technology company Intel spent money on Banerjee's machine last November, but they did not say how much money they put in. Banerjee also got $35, 000 from his father to help him start the project. His father works as a computer engineer at Intel. He spoke about why he gave so much money to his son, saying:"We as parents started to be interested more, thinking that he's on to something and this invention has to continue." Banerjee told the AP News: "My dream would probably be having most of the blind people...using my Braigo." What does the Braigo change into Braille? | [
"Photocopies.",
"Voices.",
"Electronic text.",
"Computer languages."
] | null | C | |
mmlu_stem | mmlu_stem_6100 | Humans have launched themselves into the outer space. They've landed on the moon. They've built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet - specifically, Mars. The problem is that it's no easy task. The planet is 586 times further away from the Earth than the moon, and it'll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone deterioration . Here's where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could _ the extreme g-force of a rocket launch. Mice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. They're small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior. Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station (ISS). This experiment was part of a wider NASA mission called the Mice Drawer System (MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission. The mice have participated in 20 separate experiments, to study such effects as osteoporosis , anemia and heart health. Results for the 20 experiments are coming in gradually. But it's clear that mice continue to play an important role in the ongoing quest to conquer the final frontier. The main purpose of the article is to _ . | [
"describe the role mice play in scientific research",
"report on the results of the Mice Drawer System",
"analyze how mice could pave the way to Mars",
"change people's traditional attitudes toward mice"
] | null | C | |
mmlu_stem | mmlu_stem_17546 | When carbon and oxygen combine chemically, the mass of the product is | [
"greater than the mass of the carbon plus the mass of the oxygen",
"equal to the mass of the carbon plus the mass of the oxygen",
"equal to the mass of the carbon",
"less than the mass of the carbon"
] | null | B | |
mmlu_stem | mmlu_stem_10701 | Researchers in over 80 nations are taking part in a project to conduct a decade-long census of sea life. Scientists presented some of their findings at a recent conference as the project neared its completion. In deep icy waters under Antarctica, scientists found bulbous tunicates, an underground animal, and many newly-discovered creatures believed to be related to starfish and other marine creatures. Elsewhere in the world's oceans, they have recently discovered many kinds of underwater life forms new to science. It is all part of a research effort called the Census of Marine Life. "There are about 2,000 scientists worldwide involved," said Bob Gagosian, President, CEO of the Consortium for Ocean Leadership. Gagosian helps manage the project. "Everywhere they've gone they've found new things," he says. "The ocean basically is unexplored from the point of view of marine living things." Researchers have placed small markers on hundreds of fish and marine animals to track by satellite their migration routes and to discover places where sea life gathers. According to Ron O'Dor, a senior scientist with the Census of Marine Life, knowledge of life on the ocean floor is especially limited. "90% of all the information we have is from the top hundred meters of the ocean," O'Dor states. And he says the sea floor is, on average, at a depth of 4, 000 meters. And so, as some machines dive far below what people have previously seen, scientists are discovering new species of plants, animals and living things. Since the census project began, more than 5,300 new marine animals have been found. Ocean researchers say they hope to catalogue 230,000 species during the census --which some say is only a small part of all the creatures living in the sea. From what Ron O'Dor says, we can conclude that _ . | [
"human beings only know a little about marine life",
"the oceans don't need to be further explored",
"he considers exploring the ocean a dangerous thing",
"the marine creatures mainly live on the top of the ocean"
] | null | A | |
mmlu_stem | mmlu_stem_20588 | Lodestones sharply yank metal nails because of | [
"allure",
"corrosion",
"irritation",
"evasion"
] | null | A | |
mmlu_stem | mmlu_stem_659 | In multicellular organisms, different structures have different functions. Which function is carried out in the leaves of a plant? | [
"absorbing food",
"producing flowers",
"absorbing light",
"making seeds"
] | null | C | |
mmlu_stem | mmlu_stem_13230 | A small boy lived with his mother and grandmother in a big house. His father had died. A bucket of water fell on the small boy's left foot, and it began hurting a hot. His mother said, "I'm going to put something very hot on your foot tonight. That's always very good. Tomorrow your foot won't hurt any longer." In the evening, the small boy's mother came to his bedroom. She had a hot poultice in a bowl. The small boy looked at it and said, "I don't want that. I had one a month ago. Poultices hurt." His mother sat down on his bed and said, "You're going to have this poultice on." She pulled his sheets and blankets away, and put the poultice near his foot, but the boy pulled it away quickly, and poultice fell on the bed. His mother was angry. She went down stairs and came back with his grandmother and a stick. She said to her son, "Your grandmother's going to put the poultice on your foot, and I'm going to hold this stick. Now don't be a stupid boy." She held the stick over the boy, and the grandmother took his foot and put the poultice near it. The boy said. "Stop, you..." but his mother brought the stick nearer, and he did not say anything else. The grandmother brought the poultice near the foot again, and the boy stopped her again, but his mother was angry now and said, "I'm going to hit you." The boy did not finish his words, and his grandmother put the poultice on his foot. He let it there for a few minutes and then took it off again. The boy's mother and grandmother put the sheets and blankets over him again and he said, "My left foot hurts, but you put the poultice on my right foot. I stopped you twice, but you didn't listen to me." The small boy's foot hurt because _ . | [
"he fell off the bike",
"a bucket of water fell on his foot",
"he fell and hurt his foot",
"he was ill"
] | null | B | |
mmlu_stem | mmlu_stem_18460 | Which set of equipment would be best to use when investigating what is found in a sample of pond water? | [
"net, gloves, specimen bags",
"beaker, calculator, graph paper",
"microscope, eye dropper, slides",
"measuring tape, thermometer, clipboard"
] | null | C | |
mmlu_stem | mmlu_stem_5970 | Sometime in the next century, the familiar early-newspaper on the front porch will disappear. And instead of reading your newspaper, it will read to you. You'll get up and turn on the computer newspaper just like switching on the TV An electronic voice will distribute stories about the latest events, guided by a program that selects the type of news you want. You'll even get to choose the kind of voice you want to hear. Want more information on this brief story? A simple touch makes the entire text appear. Save it in your own personal computer if you like. These are among the predictions from communication experts working on the newspapers of the future. Pictured as part of broader home-based media and entertainment systems, computer newspapers will unite print and broadcast reporting, and offer news and analysis with video images of news events. Most of the technology is available now, but convincing more people that they don't need to read a newspaper is the next step. But resistance to computer newspapers may be stronger from within journalism. Since it is such a cultural change, it may be that the present generation of journalists and publishers will have to die off before the next generation realizes that the newspaper industry is no longer a newspaper industry. Technology is making the end of ' traditional newspapers unavoidable. Despite technological advances, it could take decades to replace newsprint with computer screens. It might take 30 t0 40 years to complete the changeover because people need to buy computers and because newspapers have established financial interests in the paper industry. What is the best title of the passage? | [
"Computer newspapers are well liked.",
"Newspapers of the future will be on the computer.",
"Newspapers are out of fashion.",
"New communications technology."
] | null | B | |
mmlu_stem | mmlu_stem_9720 | Last week, I bought an alarm system for about $ 450. It consisted of a control unit with three small units. I put the control unit in the sitting-room and fastened the other units by the front door, back door and living-room windows. The instructions told us to choose three numbers, so we chose 491, the last three numbers of our telephone number. Now I will explain how the alarm works: 1. There is a power siren in the control unit. It makes a very loud noise. 2. Each of the small units sends out beams or rays in different directions. If anything moves, it breaks a beam. This sends signal to the control unit. The siren makes a noise which you can hear 50 meters away. 3. When we go to bed, I press the three buttons numbered 4, 9 and 1. Then we have 30 seconds to get out of the room before the alarm starts to work. That night I slept soundly because I was sure that no burglar could get into our house. However, at about 2:10 a. m. , I woke up and heard the siren. "There must be a burglar in the house?" Mary said, "What shall we do?" "I'll go and see who's there," I said, "Stay here. Don't make a noise. " I went down stairs quietly. When I reached the living-room, I switched on my torch and looked round the room. Then I turned the light on. I switched the siren off and searched the rooms downstairs. There was nothing wrong except that the back door was unlocked. I locked it, re-set the alarm and went back to bed. About an hour later, the alarm started again. I jumped out of bed, fell over a chair in the dark and bumped into the bedroom door. Mary woke up and started hitting me with a torch. "Hey! Wait a minute!" I whispered, "It's only me. I'm going downstairs to see what's wrong." I went down into the living-room and listened for a moment. The only sound I could hear was the siren. I tamed on the light and switched the siren off. As I did so, I glanced across at the curtains in front of the windows. I saw a house lizard (a kind of small animals) disappear behind the curtains. "Oh!" I said to myself. "That's our burglar." When the lizard moved, it started the siren. I guessed the alarm had been made in Europe, where there are no house lizards. Well, I won't finish this story but if you want an alarm system free of charge, let me know. I'll send you ours. We bought a dog this morning. It knows the difference between a lizard and a burglar . The writer bought an alarm system to _ . | [
"make sure that he got up early every day",
"warn him when there were lizards in his house",
"frighten burglars and tell him that somebody had got into the house",
"make Mary feel safe to live in the large room"
] | null | C | |
mmlu_stem | mmlu_stem_8268 | The World's Largest Insect .This giant insect can be used as a toy. A child ties one end of a string to a stick and the other end around the "neck" of an insect. Holding the stick, the child lets the insect go. With a loud whirring sound, the insect takes off, pulling the string in a large curve over the child's head. The child laughs as the stick jumps around. The child is African, and the toy is the African Goliath beetle, the largest insect in the world. The Goliath is a true insect because it has six legs and a body that is divided into three parts. Like all beetles, it has two pairs of wings. The front pair are thick and stiff and protect the back pair, which are soft. It is these soft back wings that make the beetle fly forward. They also cause the loud whirring sound the beetle makes when it flies. To steer, the beetle twists and turns its legs the same way you steer a bike by turning its front wheel. African children often use the Goliath beetle as a toy. Although it is over 15 centimeters long, it is quite harmless. What do African children often use the Goliath beetle as? | [
"a tool.",
"a toy.",
"harmfull insects.",
"Good animals."
] | null | B | |
mmlu_stem | mmlu_stem_22136 | When the sun rises, there is light and it is daytime. When is it night time? | [
"when its blue and Pink",
"when its down and lightless",
"when its seven and eight.",
"when its dead and gone"
] | null | B | |
mmlu_stem | mmlu_stem_11868 | When I was little, I'd see tons of bats flying around streetlights at night in my neighborhood in upstate New York. But I'll never forget the first time when I saw a bat up close. By the time I turned 7, though, I noticed something strange: All the bats in my neighborhood had disappeared, and I wondered why. Then, three years ago, when I was 11 and visiting the state fair, I learned what had happened to my town's bats. A disease called "white nose syndrome" had killed 93 percent of New York State's bats. I was horrified. Then I wrote a letter to the host of an environmental program on the local radio station, asking if they could do a show on bats. They did! But I still wanted to find a way to educate people face to face. I reached out to a teacher I had in elementary school and asked if I could make a presentation to her class. I described how bats help farmers by eating crop-damaging insects. It went over so well that other teachers started requesting me. Over the past three years, I've talked in front of everyone from 5-year-olds to senior citizens! Many people think that bats are blind, and that they always carry diseases, but none of that is true. The more I present, the more I notice that I am changing minds. And while getting people to respect bats is pretty hard, getting them to respect me has been difficult too. When I first applied to host a booth at a local street fair, the managers thought I was too young. But I refused to take "no" for an answer. I continued to make my case, and they finally said yes! The best part is, I impressed them so much -- 100 visitors on my first day -- that they now invite me back every year. The author wrote a letter to the host in order to ask them to_. | [
"donate some money to save bats",
"make a radio program about bats",
"announce new findings about bats",
"finish some questionnaires about the fair"
] | null | B | |
mmlu_stem | mmlu_stem_5178 | Are you a forgetful person? You might be able to blame your genes, a new study in the journal Neuroscience Letters suggests. Researchers from the University of Bonn have identified a variant on the DRD2 gene that seems to be associated with increased forgetfulness. Everyone has one of two variants of the DRD2 gene, the difference is just one letter in the genetic code: Some people have the cytosine (C) variant, while others have the thymine (T) variant. The researchers wanted to see how having one variant over another was associated with forgetfulness. To test this, they analyzed the DRD2 gene of 500 study participants, and also had the participants answer surveys about their forgetfulness (such as how often they misplaced their keys, or forgot names). Most of the study participants--three quarters of them--had the thymine gene variant, while the other quarter had the cytosine gene variant. Researchers found an association between more forgetfulness problems and having the thymine gene variant of DRD2. Meanwhile, the cytosine gene variant seemed to have a protective effect against forgetfulness. However, "there are things you can do to compensate for forgetfulness; writing yourself notes or making more of an effort to put your keys down in a specific location--and not just anywhere," study researcher Dr. Sebastian Markett, of the University of Bonn, said in a statement. Research has also suggested that some age groups are more forgetful than others. A recent national poll showed that millenials, who were born between the early 1980s and the early 2000s, are actually more likely than seniors to be absent-minded with things like what day of the week it is, where they put their keys and remembering to bring their lunch. Meanwhile, another study recently published in the journal BMC Psychology showed that men are more likely than women to experience minor memory problems. What do we know about the DRD2? | [
"It has two similar variants.",
"Some people don't have it.",
"It's bad for people's memory.",
"Everyone has one of its variants."
] | null | D | |
mmlu_stem | mmlu_stem_11763 | Europe's deadly outbreak of a rare form of E. coli bacteria has brought new attention to food safety issues. One of the problems when people get sick from food is that the simplest question is often difficult or even impossible to answer. Just what did the people eat that made them sick? Of course, one way to avoid these medical mysteries is to keep dangerous organisms out of the food supply. This is easier said than done, but scientists keep looking for new ways. Scientists in the United States have developed an experimental system that uses a high-tech optical scanner. The system is designed to identify the presence of contaminants like soil or animal waste on fresh produce. These can be sources of E. coli. E. coli bacteria naturally live in the intestines of humans and many animals. Most kinds of E. coli are harmless but some can make people sick. The new scanner can also show damage and imperfections that might make the produce unappealing to shoppers. Scientists designed the system at a Department of Agriculture research center in Beltsville, Maryland. Moon Kim of the Agricultural Research Service led the team. MOON KIM: "We were requested, we were asked, to develop a method to detect contamination in produce. So we started with the apple as the model sample." The scanner uses a high-speed camera placed over the conveyer belt that moves the produce along. As the apples move along the belt, the scanner captures images of each piece of fruit. Moon Kim says the team hopes the system will be available before long. MOON KIM: "We are targeting for development in commercial plants for the next several years." The scanner can direct a sorting machine to separate the bad apples from the good ones. The system is currently able to show the surface of only half the apple as it speeds by. The inventers hope to improve the process so it can show the whole surface. E. coli bacteria _ . | [
"broke out all over the world",
"comes from soil or animal waste",
"is extremely harmful to health",
"does not cause illness"
] | null | B | |
mmlu_stem | mmlu_stem_507 | Which of the following is a trait that a dog does NOT inherit from its parents? | [
"the length of its fur",
"the shape of its nose",
"the size of its appetite",
"the color of its fur"
] | null | C | |
mmlu_stem | mmlu_stem_21827 | You can hear | [
"a electric viola",
"a perfume",
"a thought",
"a prism"
] | null | A | |
mmlu_stem | mmlu_stem_9767 | Many people have never heard of Mesothelioma and are unaware of its symptoms. Although considered a rare form of cancer, each year the number of cases grows. With the prevalence of this disease on the rise, it is critical to understand why and how Mesothelioma develops and what courses of action can be taken in the event of diagnosis. The following is a list of frequently asked questions and answers that will provide you with some information on Mesothelioma, and the legal issues surrounding it. What is Mesothelioma? Mesothelioma is the term used to describe a cancerous tumor found in the mesothelial cells of an organ. The organs where this form of cancer is most commonly found are the lungs, heart and abdominal organs. Pleural Mesothelioma is cancer of the lung lining(,)and is the most common form of Mesothelioma. What causes Mesothelioma? Mesothelioma is almost always caused by exposure to asbestos . Asbestos is often found in building materials used before the mid 1970's. In addition, materials such as pipes, boiler insulation, floor, ceiling and roof tiles may contain asbestos. How much asbestos exposure will cause Mesothelioma? Generally, the probability of developing this form of cancer is in accordance with the length of time you are exposed to asbestos. Also, your health is at risk if your exposure to asbestos is intense. It should be noted that Mesothelioma has a latency period of 20 to 50 years. This means that you may develop the disease long after your exposure to asbestos. On average, people tend to develop Mesothelioma somewhere between 35 and 40 years after exposure. How quickly does Mesothelioma progress? The onset of Mesothelioma is quite slow. Patients will begin to experience symptoms such as lower back pain and chest pain. These symptoms may also be accompanied by weight loss, fever and difficulty breathing. Unfortunately, once Mesothelioma develops, it quickly becomes aggressive and treatment must be sought immediately. Can Mesothelioma be treated? Doctors are able to use several traditional methods of cancer treatment for Mesothelioma, including surgery, chemotherapy and radiation. Like all forms of cancer, detecting the disease at the earliest stage possible greatly increases the patient's chances for survival. If you have worked in an industry such as construction or suspect that you may have been exposed to asbestos, be alert for symptoms and contact your doctor immediately. What legal courses of action can be taken? Anyone suffering from Mesothelioma is entitled to compensation from asbestos manufacturers. Additionally, if you are the spouse or child of someone who has died from Mesothelioma, you are entitled to file a claim and seek compensation. The following are the symptoms of Mesothelioma EXCEPT _ . | [
"frequent headache",
"lower back pain",
"chest pain",
"difficult breathing"
] | null | A | |
mmlu_stem | mmlu_stem_3458 | 400-year-old plants from the Little Ice Age were brought back to life, which could help us understand how the Earth will deal with climate change. Moss found buried beneath the Teardrop glacier on Ellesmere Island in Canada has been brought back to life. Findings suggest that these plants could help repopulate regions exposed by melting ice caps. Plants that were buried beneath thick ice in Canada more than 400 years ago and were thought to have frozen to death have been brought back to life by Canadian scientists. Samples of the moss plant, covered by the glacier during the Little Ice Age of 1550 to 1850 AD, were replanted in a lab at the University of Alberta and grew new stems . Researchers now think these findings can give indication as to how regions can recover as the ice covering them melts. Biologist Dr. Catherine La Farge and her team at the University of Alberta were exploring the region around the Teardrop glacier on Ellesmere Island. Ice on Ellesmere Island region has been melting at around four meters each year for the past nine years. This means that many areas of land that were previously covered by ice have since been exposed. Many ecosystems that were thought to have been destroyed during the Little Ice Age between 1550 and 1850 AD can now be studied, including many species that have never been studied before. While examining an exposed area of land, La Farge and her team discovered a small area of moss called Aulacomnium turgidum. It is a type of bryophyte plant that mainly grows across Canada, the US and the Highlands of Scotland. Dr La Farge noticed that the moss had small patches of green stems, suggesting it is either growing again or can be encouraged to repopulate. Dr La Farge told the BBC, "When we looked at the samples in detail and brought them to the lab, I could see some of the stems actually had new growth of green branches, suggesting that these plants are growing again, and that _ When we think of thick areas of ice covering the landscape, we've always thought that plants have to come from refugia , never considering that land plants come from underneath a glacier. It's a whole world of what's coming out from underneath the glacier that really needs to be studied. The ice is disappearing pretty fast. We really have not examined all the biological systems that exist in the world; we don't know it all." Dr La Farge took samples of the moss and, using carbon-dating techniques, discovered that the plants date back to the Little Ice Age. Dr La Farge's team took the samples, planted them in dishes full of nutrient-rich potting soil and fed them with water. The samples were from four separate species including Aulacomnium turgidum, Distichium capillaceum, Encalypta procera and Syntrichia ruralis. The moss plants found by Dr La Farge are types of bryophytes. Bryophytes can survive long winters and regrow when the weather gets warmer. However, Dr La Farge was surprised that the plants buried under ice have survived into the twenty-first century. Her findings appear in proceedings of the National Academy of Sciences. According to the passage, Aulacomnium turgidum _ . | [
"lives better in small groups",
"is very active in hot weather",
"is strong enough to survive coldness",
"is chosen from Canadian refugia"
] | null | C | |
mmlu_stem | mmlu_stem_4040 | The common cold is the world's most widespread illness, which is plagues that flesh receives. The most widespread fallacy of all is that colds are caused by cold. They are not. They are caused by viruses passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes. During the First World War soldiers who spent long periods in the trenches , cold and wet, showed no increased tendency to catch colds. In the Second World War prisoners at the notorious Auschwitz concentration camp , naked and starving, were astonished to find that they seldom had colds. At the Common Cold Research Unit in England, volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose. If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter?Despite the most pains-taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on. No one has yet found a cure for the cold. There are drugs and pain suppressors such as aspirin, but all they do is relieve the symptoms. Arctic explorers may catch colds when _ . | [
"they are working in the isolated arctic regions",
"they are writing reports in terribly cold weather",
"they are free from work in the isolated arctic regions",
"they are coming into touch again with the outside world"
] | null | D | |
mmlu_stem | mmlu_stem_18133 | Which action causes a chemical change? | [
"leaves dropping from a tree",
"leaves blowing in the wind",
"leaves being burned in a fire",
"leaves being crushed into pieces"
] | null | C | |
mmlu_stem | mmlu_stem_13668 | John is a very strong man. He gets a job of cutting trees in a forest. His boss gives him an axe and showed him the area where he should work. The first day, John cuts down 18 trees. "Good," the boss says, "keep it up!" happily, John tries harder the next day, but he only cuts down 15 trees. The third day he tries even harder, but he can only cut down 10 trees. Day after day he cuts down fewer and fewer trees. "I must be losing my strength ," John thinks. He goes to the boss to say sorry and says that he can not know what is going on. "When is the last time you sharpen your axe?" the boss asks. "I'm busy cutting trees, so I have no time to do _ . " The moral of this story: While John is working hard, he doesn't work "smart". He doesn't think about the best way to do his job. How many trees does John cut down on the second day? | [
"18",
"15",
"14",
"10"
] | null | B | |
mmlu_stem | mmlu_stem_15174 | Mary has a lot of hobbies. She usually gets up early so she can run before work. She doesn't often have time to skate, but she sometimes goes on Saturdays during the winter. Mary often rides a horse near here home. She sometimes goes after work, but she usually goes horseback riding on Sundays. She loves music. She always goes to choir practice on Wednesday evenings and sings in church on Sundays. She doesn't have much money, so she seldom goes to concerts in the city. She seldom watches TV because she likes doing things outside. She usually goes to the gym if it's raining outside. She isn't often alone because she has a lot of friends. She sometimes does something alone, but she usually does her hobbies with one of her friends. She's a happy woman! Mary seldom _ because she likes doing things outside. | [
"goes to concerts",
"goes to the gym",
"goes to church",
"watches TV"
] | null | D | |
mmlu_stem | mmlu_stem_18576 | In the life cycle of a fly, which stage comes after the larval stage? | [
"egg",
"adult",
"nymph",
"pupa"
] | null | D | |
mmlu_stem | mmlu_stem_7339 | Once upon a time in a land far away, there was a wonderful old man who loved everything:animals, spiders, insects... One day while walking through the woods the nice old man found a cocoon of a butterfly. He took it home. A few days later, a small opening appeared; he sat and watched the butterfly for several hours as it struggled to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no farther. Then the man decided to help the butterfly, so he took a pair of scissors and snipped off the remaining bit of the cocoon. The butterfly then emerged easily. But it had a swollen body and small, shriveled wings. The man continued to watch the butterfly because he expected that, at any moment, the wings would enlarge and expand to be able to support the body, which would contract in time. Neither happened! In fact, the butterfly spent the rest of its life crawling around with a swollen body and shriveled wings. It never was able to fly. What the man in his kindness and haste did not understand was that the restricting cocoon and the struggle required for the butterfly to get through the tiny opening were Nature's way of forcing fluid from the body of the butterfly into its wings so that it would be ready for flight once it achieved its freedom from the cocoon. Sometimes struggles are exactly what we need in our life. If we were allowed to go through our life without any obstacles, it would cripple us. We would not be as strong as what we could have been. And we could never fly. In the story, what happened to the cocoon of the butterfly after the man's help? | [
"The cocoon was broken and the butterfly died.",
"The man helped the butterfly out of the cocoon more easily",
"The butterfly couldn't fly for ever normally.",
"The butterfly should spend more time practicing flying."
] | null | C | |
mmlu_stem | mmlu_stem_2671 | Look, this is the first plane in the world to be created using the new technology of "3D printing". The airplane was built using only a computer--but it can fly at a speed of 100mph and has a two-meter wingspan. It was produced using a special nylon laser printer that builds up something layer-by-layer. The parts were made separately and attached using a "snap fit" technique so the aircraft could be put together without tools in minutes. No fasteners at all were used in the manufacture of the plane. Unmanned and electrically powered, the plane can travel in near silence and is also equipped with a small autopilot system. The special production process used is known as "laser sintering "and allows the designers to create shapes and structures that would normally include costly manufacturing techniques. This technology allows a highly-tailored aircraft to be developed from your own design to first flight in days, while using traditional materials and techniques would take months. And because no tooling is required for manufacture, major changes to the shape and scale of the aircraft can be made with no extra cost. Professor Jim Scanlon, who led the team, said, "The process allows the design team to revisit historical techniques and ideas that would have been too expensive using traditional manufacturing." He added, "This form of structure is very firm and lightweight, but very complex. If it was manufactured traditionally it would require a large number of individually tailored parts that would have to be connected or fastened at great expense." The new printed plane is known as the Southampton University Laser Sintered Aircraft--or SULSA for short--and is part of a wider project using cutting-edge manufacturing techniques. The University of Southampton has been at the leading position of Unmanned Aerial Vehicle development since the early 1990s. How could the plane work while flying? | [
"It should be controlled by an autopilot system.",
"It should be controlled by \"laser sintering\".",
"A pilot controls it using a remote control.",
"A pilot with high techniques controlled it."
] | null | A | |
mmlu_stem | mmlu_stem_17473 | A layer of solid brittle rock comprises the outer 100 kilometers of Earth. This layer, which contains both the crust and the upper mantle, is called the | [
"core.",
"sediment.",
"lithosphere.",
"hemisphere."
] | null | C |
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