dataset string | id string | question string | choices list | rationale string | answer string | subject string |
|---|---|---|---|---|---|---|
mmlu_stem | mmlu_stem_19252 | Humans cry when they are born, horses can walk when they are born, and birds can chirp when born because of | [
"TV",
"learning from mom",
"instinctive behavior",
"school"
] | null | C | |
mmlu_stem | mmlu_stem_3416 | The place is England. The year is 1928. One of the founding theorists of quantum mechanics , Paul Dirac, is scratching his head because solutions to his equations have _ unexpected results. For the solutions to make sense, he reasons, there must be a particle that has the mass of an electron but the opposite charge. At the time, such a thing was not known to exist. Several years pass before American physicist Carl Anderson observes a "positive" electron, or positron that confirms Dirac's prediction. Antimatter , as the name implies, can be described as the opposite of ordinary matter. Every particle in the universe has characteristics such as mass and charge. With antimatter, the mass remains constant, but the sign of the charge is reversed. All particles have an antimatter counterpart , even the chargeless neutron . Unlike matter, antimatter is not common. Unless you're in the upper atmosphere, or inside a particle accelerator, you're not going to come across it. "Antimatter was not always so rare," Stephane Coutu, Penn State particle physicist says. There was a time when it was as prevalent as matter itself. "Right after the Big Bang ," Coutu explains, "we believe there must have been exactly the same amounts of matter and antimatter...and yet owing to some small asymmetry in the laws of particle interactions, all of the antimatter and most of the matter in the early universe was annihilated . We are left today with the resulting matter-dominated universe." Science fiction is rife with tales of high-energy particle annihilation, and indeed, antimatter weapons have appeared in current bestselling novels. This is unrealistic, Coutu says. "[It] would be very impractical owing to very great difficulties in producing and maintaining significant amounts of antimatter." Technology that uses the properties of antimatter is actually feasible outside of science fiction, however. Positron emission tomography (PET) is a medical technique that can be used to detect cancer, measure blood flow and detect coronary artery disease. While antimatter may never be used as a bomb, it certainly has a positive future in life-saving medical diagnostic tools, the anti-weapon. The main idea of the passage is _ . | [
"how antimatter was discovered",
"the properties of antimatter",
"where does antimatter come from",
"what antimatter is and its potential application"
] | null | D | |
mmlu_stem | mmlu_stem_12342 | Our voice gives away a lot of information about ourselves. It can tell us our gender and age. And now, scientists say that it can also tell us our height. Scientists at Washington University, Indiana University and University of California found that listeners could accurately tell the height of speakers, just by their voices. And the key to this mystery is a sound known as the subglottal resonance . It _ with height and helps us build a mental picture of a person. "The best way to think about subglottal resonances is to imagine blowing into a glass bottle with water. The less water in the bottle, the lower sound," said John Morton, a scientist at Washington University. And it's the same for humans. The frequency of the subglottal resonance depends on the height. The taller we are, the deeper the resonance frequency is. In order to find out whether people could identify the resonance, scientists did experiments. A number of same-sex pairs of different heights were told to read the same sentence aloud. It was played back to listeners who had to choose which one of the pairs was taller. Then, other listeners had to rank the speakers from the shortest to the tallest. The listeners were able to identify the tall people 62.17% of time, much higher than a lucky guess. Why not try the experiment yourself? Find out if your tall friends have deeper voices. Which of the following is TRUE? | [
"Our voice is made up of the subglottal resonance.",
"The people tested in the experiments were of different-sex pairs.",
"A person's voice is greatly different even when reading the same sentence.",
"Listeners' ability to identify taller speaker is much higher than a lucky guess."
] | null | D | |
mmlu_stem | mmlu_stem_10602 | 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. What is this passage mainly about? | [
"Thin people may be fat inside.",
"Internal fat is of no importance.",
"Internal fat leads to many diseases.",
"Thin people don't have diabetes."
] | null | A | |
mmlu_stem | mmlu_stem_3968 | Ask anyone what is the most difficult part of changing their lifestyle habits and they are most likely to say, "Staying motivated." But a 36-year-old professor from Carnegie Mellon University claims it may have the answer in the form of robot weight loss coach that dishes out daily health advice and encouragement. Autom is the work of Intuitive Automata, a company based in Sha Tin which claims to be a pioneer in commercial socially-interactive robots. The robot, which stands around 38 centimeters tall, has a head that swivels , blue eyes, and a touch screen which allows the user to input information daily about exercise and diet Its creators say Autom will have a daily conversation with its user lasting up to five minutes, giving feedback and encouragement.Over time, it will interact more with the user as it gathers more information about them. Cory Krdd, a research team manager with the Federal Emergency Management Agency claims research has shown that people find robots a more reliable source of information than on-screen-based character. In a controlled study in Pittsburgh City Council, 15 dieters were given Autom for six weeks. Another 15 received a touch-screen computer with identical software and 15 were given a paper log.The study found, people using the robot are more likely to stick with their diets longer, in fact twice as long as those using just a paper log. "While not one person among the computer or paper groups continued past six weeks, most who had Autom did not want to give her back at the conclusion of the study," he said. The bottom line is that a robot creates a more powerful and long-lasting relationship with the user than a character on the screen. Autom is expected to go on sale later this year in the United States for around $500.A robot which speaks and understands Cantonese and Mandarin in addition to English according to the demands is also being developed. Which institution is responsible for the development of Autom? | [
"Intuitive Automata.",
"Pittsburgh City Council.",
"Carnegie Mellon University.",
"Federal Emergency Management Agency."
] | null | A | |
mmlu_stem | mmlu_stem_3519 | E-mail is one of the biggest threats to your home computer. By understanding how E-mail works, and by taking some steps in how you deal with reading and writing messages, you can keep this threat out of your computer. When you exchange E-mail with someone else, the messages sent between you and that person pass through several computer before they reach their places. Imagine this conversation as it is taking place in an Internet "room", a very, very big room. Anyone, or more exactly, any program can probably understand what is being said, because most Internet conversations are not hidden in any way. As a result, others may be listening in, _ what you send, and using it for their own good. E-mail-borne viruses often arrive in attractive, fantastic appearances, much like the beautiful ads we receive by way of traditional mail that is made to sell us something. By beautiful appearances, an infected E-mail message seems to be something we want to read from someone we know, not a mean virus ready to destroy or damage our computers. There are some steps that you can take to help you decide what to do with every E-mail message with an attachment that you receive. You should only read a message that passes all of these tests: 1) The Know Test: Is the E-mail from someone that you know? 2) The Received Test: Have you received E-mail from this sender before? 3) The Expect Test: Were you waiting for E-mail with an attachment from this sender? 4) The Meaning Test: Do the topic line of the E-mail message and the name of the attachment both have meanings? 5) The Virus Test: Is the E-mail infected? As the Internet is open to anyone, we should _ . | [
"not read and write messages in our home computers",
"not allowed nice advertisements to reach our computers",
"stop our conversations while someone is listening in it",
"be careful with the attractive E-mail sent by strangers"
] | null | D | |
mmlu_stem | mmlu_stem_17477 | A meeting of scientists, called a symposium, occurs every year to share recent research about the atmosphere of Earth. This symposium mainly serves which purpose in science? | [
"to test research methods used by other scientists",
"to develop questions about space research",
"to discuss the meaning of new discoveries",
"to explain gas properties to the general public"
] | null | C | |
mmlu_stem | mmlu_stem_3794 | When you cut your skin, you bleed . If a person loses a lot of blood, he will become ill and may die. Blood is very important. People have always known that. At one time, some people even drank blood to make them strong! When doctors understand how blood goes around inside the body, they try ways of giving blood to people who need it. They take blood from the healthy people and give it to people who need it. This is called "blood transfusion". The blood goes from the arm of the healthy person into the arm of the sick person. But there are two problems. First, it does not always work. Sometimes people die when they have blood transfusion. Later, doctors find that we do not all have the same kind of blood. There are four groups--O, A, B and AB. We all have blood of one of these groups. They also find that they can give any kind of blood to people of group AB. But they find that they must give A-group blood to A-group people and B-group blood to B-group people. I have O-group blood and the doctor told me that I could give blood to anyone else safely. ks5u There is another problem. To give blood of the right kind, doctors have to find a person of the right blood group. Often they can not find a person in time. If they have a way to keep the blood until someone needs it, they can always have the right kind of blood. At first they find they can keep it in bottles for fifteen to twenty days. They do this by making it very cold. Then they find how to keep it longer. In the end they find a way of keeping blood for a very long time. We call a place where we keep money a "bank". We call a place where we keep blood a "blood bank". One day, when you grow up, you may decide to give blood to a "blood bank". In this way you may stop someone from dying. Or perhaps one day you may become ill. You may need blood. The "blood bank" will give it to you. Which of the following is true? | [
"Doctors can give any kind of blood to the writer.",
"The writer can give blood to B-group people.",
"The writer has never had a blood transfusion.",
"The writer has the same kind of blood as his father."
] | null | B | |
mmlu_stem | mmlu_stem_12262 | A plant makes its own food in its leaves .Water comes to the leaves through the roots . Air gets into the leaves through very small holes . The green coloring in the leaves uses the water and air to make the food for the plant . It also needs sunshine because a plant can make food only when the sun is shining. Animals and people could not live without green plants . They both eat plants .People and some animals also eat the meat of some animals and these animals eat plants. A plant has very small holes in its leaves for _ to come in. | [
"air",
"water",
"sunshine",
"green coloring"
] | null | A | |
mmlu_stem | mmlu_stem_1196 | Which best describes the speed of a ball as it is thrown straight up into the air and comes back down? | [
"The ball goes up at a constant speed, stops, then comes down at a constant speed.",
"The ball goes up at a constant speed, stops, and increases speed as it comes down.",
"The ball goes slower and slower as it goes up, stops, and then goes faster and faster as it comes down.",
"The ball goes slower and slower... | null | C | |
mmlu_stem | mmlu_stem_16075 | Mr. John and Mr. Brown work in the same office. One day Mr. John says to Mr. Brown, "I will have a small party in our house on Monday evening. Would you and your wife like to come?" Mr. Brown says, "Thank you very much. I'd love to, but let me ask my wife first." So Mr. Brown goes to the other room and telephones his wife. Then he comes back and looks very worried. "What's the matter?" asks Mr. John. "Is your wife there at home?" "No," answers Mr. Brown. "She isn't there. My small son answers the telephone. I say to him, 'Is your mother there, David?' and he answers 'No, she isn't in the house. ''Where is she?' I ask, 'She is somewhere outside.' 'What's she doing?' 'She is looking for me.'" ,. How many people are there in the story? | [
"3",
"4",
"5",
"6"
] | null | B | |
mmlu_stem | mmlu_stem_21702 | One of the reasons some species go extinct is because predators | [
"have school with them",
"tickle and cuddle them",
"murder too many of them",
"go dancing with them"
] | null | C | |
mmlu_stem | mmlu_stem_13079 | E-book is short for electronic( ) book. It is usually read on personal computers. Some mobile phones can also be used to read e-books. Earlier e-books were written for a specific group of readers and were about only a few subjects. With the development of the internet, knowledge and answers to a lot of questions mainly come from e-books. This is why the e-book business is increasing quickly E-books have many advantages. First, they save time. We don't need to go to a bookstore to buy books, besides, we can find the topic we want to know about on the Internet, and then we can quickly get many e-books on similar topics. Second, e-books save money. Some e-books cost a little money, and there are millions of e-books on the Internet that we can get for free. Third, more trees are saved because e-books don't need to be printed on paper. Fourth, e-books make reading more convenient. You can carry a whole library of hundreds of books with you in a small computer or any e-book reader without worrying about their weight. But e-books have certain disadvantages. They need a personal computer or an e-book reader and the information can be lost if its file format is not supported or changed in the reader's computer. However, e-books provide us with a new way of reading. That is good. ,. How many advantages do e-books have according to this article? | [
"Three",
"Four",
"Five",
"Six"
] | null | B | |
mmlu_stem | mmlu_stem_20849 | What likely directly came from a sprouted seed? | [
"a metal lantern",
"a glass lantern",
"a jackolantern",
"a paper lantern"
] | null | C | |
mmlu_stem | mmlu_stem_3696 | A Notice of Delnor Hospital (the "Hospital") THIS NOTICE DESCRIBES HOW MEDICAL INFORMATION ABOUT MAY BE USED AND DISCLOSED ( ) If you have any questions about this notice, please contact: The ASIFlex Privacy Office PO BOX 6044 Columnbia MO 65205- 0858 We understand that medical information about you and your health is personal. We are committed to protecting your medical information. We create a record of the care and services you receive at the Hospital. We need this record to provide you with quality care and to comply with certain legal requirements. This notice explains the ways in which we may use and disclose medical information about you. We also describe your rights and certain obligation( ) we have regarding the use and disclosure of medical information. HOW WE MAY USE AND DISCLOSE MEDICAL INFORMATION ABOUT YOU The following categories describe different ways that we use and disclose your medical information. Not every use or disclosure in every category is listed. However, all of the ways we are permitted to use and disclose information will fall within one of the categories. For Treatment. We may use your medical information to provide you with medical treatment or services. We may disclose your medical information to doctors, nurses and technicians. In addition, the doctor may need to tell the dietician if you have diabetes so that we may arrange appropriate meals. Different departments within the Hospital also may share your medical information. For Payment. We may use and disclose your medical information so that the treatment and services you receive at the Hospital may be billed and payment may be collected from you, an insurance company or a third party. We also may tell your health plan about a treatment you are going to receive to obtain prior approval or to determine whether your plan will cover the treatment. For Health Care Operations. We may use and disclose your medical information for the Hospital operations purposes. These uses and disclosures are necessary to run the Hospital and to make sure that all of our patients receive quality care. We also may combine your medical information with those of many Hospital patients to determine whether additional services should be offered, what services are no longer needed and whether certain new treatments are effective. Which of the following isn't mentioned in the notice? | [
"The patient will be told how soon he can recover after an operation",
"The Hospital creates a record of the care and services.",
"The patient can be told his health plan about a treatment",
"The Hospital can arrange appropriate meals for patients."
] | null | A | |
mmlu_stem | mmlu_stem_13338 | Can you speak to dolphins? Of course you can but you won't be able to understand them! We interviewed a biologist and asked her what research on dolphin communication has shown. This is what she told us. Just like dogs, cats and other mammals, dolphins communicate by using sound, vision , touch and taste. Each dolphin has its own signature whistle to identify itself and to call others. Dolphins don't have the ability to smell, but their hearing and eyesight are excellent. We also asked Jane if dolphins have got their own language. She told us that they have and that dolphins started talking to each other from birth. They make different sounds, including whistles, squeaks and click. Sometimes they even sound like a heavy metal band! We then asked Jane if any interesting experiments have been done. She told us that a very interesting experiment had been done with a mother dolphin and her two-year-old baby in an aquarium. They talked to each other over the telephone! The two dolphins were in separate tanks which were connected by a special under water system. Unfortunately the biologists couldn't understand what the dolphins were talking about because they haven't been able to decode dolphin language yet. However, it was very clear that the dolphins knew what they were talking about. Finally we asked Jane if there was hope that we would be able to understand dolphins in the near future. She told us that she and her team have been listening to dolphins for more than 17 years, using special equipment to record and analyze their language. Unfortunately they haven't been able to decode it yet, but who knows -- maybe one day we'll get a phone call from a dolphin. The best title of the reading may most probably be _ . | [
"An Interesting Experiment",
"Mother Dolphin and Baby",
"Animal Talk",
"Further Research"
] | null | C | |
mmlu_stem | mmlu_stem_9397 | The TV shows a baby's pram rolling off a train platform as the mother makes a mad rush to save her son, but she is too late and it falls onto the rails in front of an incoming train. This heart-stopping scene happened yesterday at Ashburton station in Melbourne, Australia. But the story has a happy ending: the six-month-old baby survived with just a cut on his forehead, although the pram was dragged about 35 metres by the braking train. The nurse Jon Wright said the boy just "needed a feed and a sleep" and didn't need to stay in hospital. "Luckily, he was strapped into his pram at the time, which probably saved his life. I think the child is extremely lucky, " Wright told theHerald Sunnewspaper after the baby was taken to hospital with minor injuries. Fortunately the train was already slowing down to stop at the station so it stopped quickly when the driver put on the brakes as soon as he saw the pram fall in front of him. Rail firm Connex is to look into how the pram rolled off the platform. The accident came one day after Connex started a child safety awareness activity warning parents to keep babies strapped into their prams at all times while on platforms. The accident happened at the same time as the "balloon boy "story in the US, in which a six-year-old Colorado boy was reported to be trapped in a flyaway balloon. However, he was later found hiding in the family's garage. Many people believe that it had all been a publicity _ by the parents. No such doubts surround the baby on the train platform. Why could the train stop quickly? | [
"Because it had just begun to move.",
"Because it was moving slowly at that time.",
"Because the mother took measures quickly.",
"Because the driver saw the pram fall."
] | null | B | |
mmlu_stem | mmlu_stem_11802 | Edmund Halley was an English scientist who lived over 200 years ago. He studied the observations of comets which other scientists had made. The orbit of one particular comet was a very difficult mathematical problem. He could not figure it out. Neither could other scientists who dealt with such problems. However, Halley had a friend named Isaac Newton, who was a brilliant mathematician. Newton thought he had already worked out that problem, but he could not find the papers on which he had done it. He told Halley that the orbit of a comet had the shape of an ellipse . Now Halley set to work. He figured out(,)the orbits of some of the comets that had been observed by scientists. He made a surprising discovery. The comets that had appeared in the years 1531, 1607, and 1682 all had the same orbit. Yet their appearance had been 75 to 76 years apart. This seemed very strange to Halley. Three different comets followed the same orbit. The more Halley thought about it, the more he thought that there had not been three different comets as people thought. He decided that they had simply seen the same comet three times. The comet had gone away and had come back again. It was an astonishing idea! Halley felt certain to make a prediction of what would happen in the future. He decided that this would appear in the year 1758. There were 53 years to go before Halley's prediction could be tested. In 1758 the comet appeared in the sky. Halley did not see it, for he had died some years before. Ever since then that comet had been called Halley's comet, in his honor. Edmund Halley figured out the orbit of _ . | [
"some different comets appearing several times",
"the same comet appearing at different times",
"three different comets appearing at the same time",
"several comets appearing at the same time"
] | null | B | |
mmlu_stem | mmlu_stem_9514 | Tim Berners-Lee is the man who wrote the software program that led to the foundation of the World Wide Web. Britain played an important part in developing the first generation of computers. The parents of Tim Berners-Lee both worked on one of the earliest commercial computers and talked about their work at home. As a child he would build models of computers from packing material. After graduating from Oxford University he went on to the real thing. In the 1980s, scientists were already communicating using a primitive version of e-mail. While working at a laboratory in Switzerland, Tim Berners-Lee wrote a program, which let him store these messages. This gave him another idea: write a program that will let academics from across the world share information on a single place. In 1990 he wrote the HTTP and HTML programs which form the basis of the World Wide Web. The next year his programs were placed on to the Internet. Everyone was welcome to use them and improve them if they could. Programmers used this codes to work with different operating systems. New things like web browsers and search engines were developed. Between 1991 and 1994 the number of web pages rose from 10 to 100,000. In 1994 Tim Berners-Lee formed the newly formed World Wide Web consortium , or W3C. More than 200 leading companies and laboratories are represented by W3C. Together they make sure that everyone can share equally on the web. "The Web can help people to understand the way that others live and love. It helps us understand the humanity of people." he says. From the passage, we can infer that Tim Berners-Lee is . | [
"British",
"American",
"Swiss",
"French"
] | null | A | |
mmlu_stem | mmlu_stem_442 | Which of the following best describes a role of mushrooms in ecosystems? | [
"capturing energy from sunlight",
"consuming living plant material",
"taking energy from animal hosts",
"breaking down dead plant material"
] | null | D | |
mmlu_stem | mmlu_stem_4485 | Several animal species including gorillas in Rwanda and tigers in Bangladesh could risk extinction if the impact of climate change and extreme weather on their habitats is not addressed, a UN report showed on Sunday. Launched on the sidelines of global climate negotiations in Durban, the report by the United Nations Food and Agriculture Organization shows how higher temperatures, the rise in sea levels, deforestation and excessive land use have damaged the habitats of certain species, especially in Africa. "Many ecosystems have already been stressed by increasing population, historical and recent deforestation, unsustainable management practices and even invasive species," Eduardo Rojas-Briales, assistant director general at the FAO's forestry department, said at the launch of the report. The most affected areas include mountains, isolated islands and coastal areas, which limit the possibilities for animals to migrate elsewhere and create new habitats. "The remaining populations become surrounded in very small ecosystems, they have inbreeding problems ... and at the end these species may disappear," he added. Other examples of affected animals included elephants in Mali, lions in the Serengeti and crocodiles in Malawi. The report said an estimated 20-30 percent of plant and animal species will be at higher risk of extinction due to global warming and a significant proportion of native species may become extinct by 2050 as a consequence. Other consequences could include the spread of invasive species and infectious diseases, it said. The report urges more focus on restoration of damaged ecosystems, especially those key to dealing with climate change such as mangroves , inland waters, forests, savannahs and grasslands. The FAO also called for the creation of migration corridors for animals in areas where their movement was limited. The organization said while more resources were flowing to biodiversity conservation, more action at the government and policy level was needed. It also urged local communities to develop projects that _ the impact of climate change on wildlife, naming eco-tourism activities as an example. To avoid extinction of some animal species, the UNFAO suggested all the following ways EXCEPT _ . | [
"restoring damaged ecosystems",
"limiting world population growth",
"creating movement channels for animals",
"urging governments and local communities to take action"
] | null | B | |
mmlu_stem | mmlu_stem_20356 | Diverting overflow from a reservoir through pipes generates | [
"The Colorado River",
"hydropower",
"The Hoover Dam",
"solar power"
] | null | B | |
mmlu_stem | mmlu_stem_13176 | This is a new picture. There are four boys and three girls in the room. They are all students. The boy on the desk is Jim. The girl near the window is Kate. Jim's sister Jane is on the chair. Ann and Mike are at the door. Mike's brother Sam is under the table. Where is Tom? Oh, he is over there, near the door. They are all very happy. Who is Jim's sister? | [
"Tom",
"Jane",
"Kate",
"Ann"
] | null | B | |
mmlu_stem | mmlu_stem_2717 | Australian scientists say an organic compound used by Indian women to paint dots or bindi on their foreheads could hold the key to a breakthrough in cancer treatment. Rose Bengal was first used in the early 1900s as a dye for food, textiles and cosmetics. But now it is proving to be a useful weapon in the fight against skin cancer. Television advertisements constantly warn of the dangers of overexposure to the fierce sun. Among them is the possibility of the disease melanoma , a type of skin cancer. More than 1,200 Australians die every year from the disease. Initial trials of a solution of Rose Bengal injected into some melanoma cells have had a 75 percent success rate in controlling the disease. Professor John Thompson, the director of the Melanoma Unit at the University of Sydney, says this organic dye could become a powerful cancer-fighting treatment. "We believe it works by getting into the tumor cells and causing them to self-destruct. But the exact mechanism by which it works is not totally clear. It's not useful for people who have a primary melanoma. The treatment of primary melanoma is surgical excision ,"he said. "It's useful to inject tumors for people who have recurrences; when the primary treatment has failed and when recurrence in the area, or at more distant sites has occurred." About 90 percent of Australians who develop melanoma survive thanks to early diagnosis and treatment. If left untreated, however, the disease can be fatal. Convincing younger people in Australia about the dangers of overexposure to the sun is a battle campaigners are constantly waging. Veronica Manock, a 21-year-old student, had two major operations to remove a cancerous tumor from her leg. "I've had a lot of friends who just said 'I thought it was just, you know, I'll get a mole cut out and that's it', whereas I don't think people realize how much danger they're putting themselves into and how easy it is to stop something like this happening to you just from doing little things,"said Marock. Other researchers in Australia are investigating genetic treatments to skin cancer. There is a pressing need for such research to produce effective treatments. Australians, the majority of whom are fair-skinned , are four times more likely to develop a melanoma than people in Canada, the United States or Great Britain. The main reason for Australia's high rate in skin cancer is _ . | [
"the overuse of cosmetics",
"overexposure to the sun",
"the color of their skin",
"the lack of prevention"
] | null | B | |
mmlu_stem | mmlu_stem_18196 | Tony is studying ladybugs in a garden. Which of these would BEST help Tony to count the spots on a ladybug? | [
"Stopwatch",
"Thermometer",
"Measuring cup",
"Magnifying glass"
] | null | D | |
mmlu_stem | mmlu_stem_19904 | A lady needs to be able to confirm what very small text reads on her pill bottle, so a ______ is necessary. | [
"microscope",
"telescope",
"magnifier",
"binoculars"
] | null | C | |
mmlu_stem | mmlu_stem_20182 | A fish lives in | [
"dihydrogen monoxide",
"carbon monoxide",
"dihydrotestosterone",
"iron sulfate"
] | null | A | |
mmlu_stem | mmlu_stem_14980 | Today is November 8th. It's Gina's birthday. She is twelve. Jim, Kate and Bill are her friends. They want to buy some presents for Gina. They go to the store near the school. There are lots of things in the store. They buy a big cake , two boxes of color pencils, a pencil case and some nice books. They want to buy two dolls for Gina, but the dolls are too dear . They buy _ for Gina. | [
"a big cake",
"two boxes of color pencils",
"a pencil case and some nice books",
"A, B and C"
] | null | D | |
mmlu_stem | mmlu_stem_17269 | Which is an example of a chemical reaction? | [
"The melting of ice",
"The grinding of salt crystals to powder",
"The burning of wood",
"The evaporation of water from a puddle"
] | null | C | |
mmlu_stem | mmlu_stem_20999 | A person can bring harm to an animal habitat by | [
"avoiding it",
"leaving it alone",
"building in it",
"ignoring it"
] | null | C | |
mmlu_stem | mmlu_stem_6624 | Imagine that you are sitting in a park and suddenly remember that you need to send an urgent email. You have your laptop computer with you and you connect it to a wireless access point and access the Internet. Then you send your email. This wouldn't have been possible if there were no wireless Internet for laptops. Wireless Internet has come into our life in so many ways that we don't even realize what a necessary part it has become of our day-to-day lives. How do we connect to a wireless Internet service for laptop computers? There are two ways to do this. They are Wi-Fi connection and Bluetooth connection. Wireless networking is very easy. You just switch on the Wi-Fi button that has been provided in the laptop for Wi-Fi scanning. Once that is done, the computer will connect to the Internet. An interesting fact about Wi-Fi networking is that you can create a network between similar wireless equipment. Consider a situation where you and your friend both have Wi-Fi laptops, and there is some data you want to exchange. Traditional networking architecture demands that you have a wireless router . But the beauty of Wi-Fi networking technology is that you can set up a network between you and your friend's laptop, and share all the data you want. Broadband Internet connection is typically preferred by any user as it provides better speed for Internet surfing. Up until the invention of 3G mobile phones, Internet speed on mobile phones was very slow. 3G has the promise of changing the entire face of broadband technology. Just imagine browsing at speeds of more that 2MB per second. To give you a measure of the speed, 3G enables you to watch high quality live videos on the Internet. It is amazing to see how technology changes and the rate at which it changes. There may come a time when you may be able to browse using mobile wireless Internet for laptops anywhere in the world. People can enjoy a wireless Internet service for laptop computers by _ | [
"connecting to another computer",
"switching off the Wi-Fi button",
"using bluetooth connection",
"connecting bluetooth to Wi-Fi"
] | null | C | |
mmlu_stem | mmlu_stem_10047 | Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security. Her friend, Kate, found this article and sent it to her. www.zxxk.com Introduction A lot of crime is against bicycles. About 150,000 bicycles are stolen every year and most are never found. You can prevent this happening by following a few careful steps. Basic Security Do not leave your bicycle in out-of-the-way places. Always lock your bicycle when you leave. Secure it to lampposts or trees. Take off smaller parts and take them with you, for example lights and saddles . Locks Get a good lock. There are many different types in the shop. Buy one that has been tested against attack. Ask for a recommendation from a bike shop. Marking Security marking your bike can act as a deterrent to a thief. It can also help the police find your bicycle. It should be clearly written and include your postcode and your house or flat number. This will provide a simple way to identify your bicycle. Registration There are a number of companies who will mark your bicycle for you. They will then put your registration number and personal details on their computer database. Then if your bicycle is found it will be easy to contact you. Finally Keep a record of the bicycle yourself: its make, model and registration number. You can even take a photograph of it, this will prove the bicycle belongs to you. The main purpose of this article is _ . | [
"to tell you what to do if your bicycle is stolen",
"to suggest ways of keeping your bicycle safe",
"to give you advice on where to buy a good lock",
"to say why you shouldn't keep your bicycle in a quiet place"
] | null | B | |
mmlu_stem | mmlu_stem_4525 | One afternoon Peter and Jim went out for a bicycle ride. When they passed a place they saw a large area of grass and bushes on fire and a strong wind was blowing the flames towards a village. The firemen had already arrived and were trying to put out the fire. The boys left their bicycles and ran towards the village to see if they could help to fight the fire. On the way they met two firemen. "Quick, you boys," said one of the firemen. "Come and help us to pull a pump to the stream. We can't beat out the fire. The wind is too strong. The pump is our only hope." The two boys ran further until they came to a heavy pump. They helped to pull it to a stream not far from the village. Soon the pump was working well so the boys went to watch the fire. It had already reached the edge of the village. The boys saw that two houses were on fire, and the flames were attacking a third building. Suddenly there was a shout from one of the villagers. "Keep away!" a voice shouted. "There's paint stored in that building." The boys and villagers moved away quickly. With a loud explosion , the whole building burst into flames, sending clouds of thick black smoke into the sky. At this time Peter and Jim began to think that the whole village would be burnt to the ground. The firemen had left the burning buildings and were pouring water onto the neighboring houses, trying to stop the fire from spreading. Then the wind died down. A second pump was brought up to help, and the fire was gradually put out. "It's soon finished," Peter said to his friend. "We must go or we shall get home late." "Yes, come on," agreed Jim, and with a last look at the ruins, they walked back to their bicycles. Seeing the fire, the boys ran to the village to _ . | [
"watch it",
"ask for help",
"help the firemen",
"warn the villagers"
] | null | C | |
mmlu_stem | mmlu_stem_20555 | A cup of cold coffee will warm up when heat is applied such as through | [
"a metal chair",
"a flat napkin",
"an electrical plate",
"a wood table"
] | null | C | |
mmlu_stem | mmlu_stem_8640 | Promised yourself to quit smoking in the new year, but just can't stop lighting up? You're not alone, with an Australian survey showing that only 3 percent of smokers who made such resolutions stuck with them. An online poll of just over 1,000 people, conducted ahead of the launch of a video game designed to help smokers quit, showed one in four Australians made New Year's resolutions to quit ---- but more than half went back on their word within a week.Some 15 percent lit up within hours of making the pledge, the survey showed, The research revealed that seven out of ten smokers have tried to kick the habit at some point. "Our research shows that the majority of smokers in Australia want to quit but are struggling to stick to their resolution.For most people, the desire to stop smoking is not enough, "Edward Fong, general manager of Ubisoft, the videogame manufacturer selling the anti-- smoking software, said in a statement. According to the survey, Australian smokers light up an average of 13.8 cigarettes every day or 5,037 cigarettes a year.There are currently 2.63 million smokers in Australia, which equates to 16 percent of the population over the age of 18, with women on average making more attempts to quit than men.The World Health Organization says smoking kills about 4 million people each year, causing a quarter of deaths related to heart disease.The organization estimates that by 2030, more than 8 million people will die from tobacco - related causes each year, mainly in developing countries. According to the passage, _ succeeded in giving up smoking. | [
"most of the smokers",
"None of the smokers",
"a few of the smokers",
"a quarter of the smokers"
] | null | C | |
mmlu_stem | mmlu_stem_41 | Which of these best defines the term "pollutant"? | [
"anything humans add to the atmosphere and oceans",
"any substance that is harmful to the environment",
"any substance that is a waste product of industry",
"a substance that does not break down over time"
] | null | B | |
mmlu_stem | mmlu_stem_2595 | Imagine having an idea, drawing it on paper, bringing it to a store and seeing it turned into a physical object.This is now possible with the help of 3D printers.Such machines were once used just by universities and big companies.But now, stores with 3D printing services are appearing around the United States. Bryan Jaycox and his wife opened The Build Shop LLC in Los Angeles two years ago.The store is filled with tools like a laser cutter, an industrial sewing machine and 3D printers.Bryan Jaycox requires $ 15 an hour to print an object.He also charges a fee depending on the size of the object and up to $ 50 an hour for design and labor services. The Jaycoxs also offer 3D printing classes for anyone who is interested.One of the students in a recent class was Ki Chong Tran.He plans to open a 3D printing business in Cambodia."The demand has been amazing.It's been much more than I would have imagined," said Ki Chong Tran. "I think 3D printing is going to be huge. It's going to make a huge impact on society as a whole," he added. Mr Jaycox predicts that within five years, 3D printing technology could become more consumer friendly. But Ki Chong Tran says even current technology can make a difference in a developing country like Cambodia."With 3D printing you can give them tools, and you put it in their hands so they are responsible more for their own development. They learn skills beyond just learning English and becoming a tour guide or something like that or working at a bank.You can actually create things that give value to the world," said Ki Chong Tran. He says it's not just Cambodia but anywhere where there is a 3D printer, it can turn a good idea into reality. Bryan Jaycox opened The Build Shop LLC to _ . | [
"sell 3D printers and different kinds of tools",
"produce all types of printing machines",
"offer 3D printing classes and services",
"design different types of 3D printers"
] | null | C | |
mmlu_stem | mmlu_stem_4503 | For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive to such messages. Scientists are using powerful radio telescopes to listen to signals from about 1, 000 stars, all within 100 light years of earth. In addition, they will scan the entire sky to "listen" for radio messages from more distant stars. Using a computer, they will be able to _ more than eight channels at one time. Scientists are looking for any signal they stands out from the background noise. Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life. Based on the inhabitable(that can be lived in)planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life. However, many scientists wonder whether intelligent life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely. Other scientists believe that our search hasn't been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family is only about five billion years old, our galaxy is about 20 billion years old. In that time, some scientists think it is likely that civilization much more advanced than ours have developed. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.[ According to the passage, how many planets in our galaxy might be inhabitable? | [
"5 billion.",
"10 billion.",
"15 billion.",
"200 billion"
] | null | A | |
mmlu_stem | mmlu_stem_8721 | Often speakers at a meeting experience dry mouths and ask for a glass of water.You can solve the problem by activating the saliva in you mouth.First gently bite the edges of your tongue with your teeth.Or,press your entire tongue to the bottom of your mouth and hold it there until the saliva flow.Or you can imagine that you are slicing a big juicy lemon and sucking the juice. Before you begin your talk,be kind to your voice.Avoid milk or creamy drinks which coat your throat.Keep your throat wet by drinking a little sweetened warm tea or water-down fruit juice. If you sense that you are losing your voice,stop talking completely.Save your voice for your speech.You may feel foolish using paper to write notes,but the best thing you can do is to rest your voice.If you feel the need to see a doctor,perhaps getting some advice from a professional singer can be a better choice.In the meantime,do not even talk in a low voice. What about drinking alcohol to wet your throat?I advise you not to touch alcohol before speaking.The problem with alcohol is that one drink gives you a little confidence.The second drink gives you even more confidence.Finally you will feel all-powerful and you will feel you can do everything,but in fact your brain and your mouth do not work together properly.Save the alcohol until after you finish speaking. Perhaps you want to accept the advice,but you may wonder if you can ever change the habits of a lifetime.Of course you can.Goethe,who lived before indoor skating rinks or swimming pools,said,"We learn to skate in the summer and swim in the winter."Take this message to heart and give yourself time to develop your new habits.If you are wiling to change,you will soon be able to say that you will never forget these techniques because they've become a part of your body. What does the writer suggest when you feel you are losing your voice? | [
"Going to see a doctor.",
"Asking a professional singer for help.",
"Whispering the things that you want to say.",
"Keeping on talking rather than use a paper to write notes."
] | null | B | |
mmlu_stem | mmlu_stem_3826 | Many countries have passed safety laws that require seat belts in vehicles. A modern three-point seat belt, also called a safety belt, is a harness to prevent the driver or a passenger from flying forward and hitting hard against the interior of a vehicle during a collision. A modern seat belt will help to position you properly to gain maximum benefit from your car's airbags that will inflate during a collision. Using a seat belt also prevents you from being ejected from a car into the path of oncoming traffic. Research shows that when you wear a modern seat belt, you reduce the risk of death or serious injury by 70% or more during an auto accident. Seat belts have existed in different forms since the early days of automobiles, and they have changed from a single lap belt to the three-point seat belt we use today. In 1911 the first airplane seat belt was installed. Then, in the 1920's they were used in racecars. By the 1930s, a group of American physicians created lap belts for their own vehicles and urged vehicle manufacturers to provide seat belts on all vehicles. Dr. C. Hunter Shelden made a major contribution to our safety with his article in the November 5, 1955 Journal of the American Medical Association (JAMA). He strongly encouraged the manufacture and use of door locks, airbags, and retractable seat belts, like the ones we use today. The modern three-point seat belt, including a lap belt and a shoulder belt, was introduced as standard equipment on Volvo cars in 1959. In 1970, the state of Victoria in Australia made the wearing of a seat belt compulsory for every car driver and front-seat passenger. Today many countries have also mandated the use of five-point safety harnesses for carefully designed child safety seats that can protect a child during a serious car accident. An airbag is a Supplemental Restraint System, or SRS, and consists of a rapidly inflatable restraint cushion that works together with a seat belt to protect you during a collision. Modern cars often contain several airbags in various locations. Since airbags can only inflate once and will quickly deflate after the initial impact, they will not provide any protection for you during a secondary collision. The inflation of airbag can protect or hurt you. The risk zone for a driver's airbag is the first 8 centimeters from its pre-inflation location. While driving, you should remain about 25 centimeters from the airbag in the center of the wheel. As a driver, wear your seat belt and make sure children correctly use their seat belts. Failure to wear a seat belt properly means the airbags in your car might injure or even kill you during an accident. An essential part of your safe driving skills is the habit of making sure that you and each of your passengers are always properly positioned and wearing a seat belt. There are many wonderful benefits of being able to drive a car, but there are also severe consequences during an accident for anyone who chooses not to wear a seat belt. This article mostly deals with _ . | [
"how to drive safely on the road",
"different forms of seat belts",
"the history of seat belt development",
"the importance of seat belt use"
] | null | D | |
mmlu_stem | mmlu_stem_16979 | We've talked about snails and their slow move. But much of the time snails don't move at all. They're in their shells ---sleeping . Hot sun will dry out a snail's body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover. Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep. In spring the snail wakes up. Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It can't see very well. Its eyes, at the ends of the top feelers are very weak. But its sense of smell is very strong. It helps the snail to the new greens. Then the snail's little mouth goes to work. A snail's mouth is no longer than the point of a pin . Yet it has 256,000 teeth! The teeth are so small that you can't see them. But they do their work.. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones. Mostly, a snail looks for food at night .But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full. A snail goes to sleep when _ . | [
"it feels hungry",
"it is put in a paper box",
"spring is coming",
"it rains heavily"
] | null | D | |
mmlu_stem | mmlu_stem_16506 | A study reported: using a computer at home may be bad for a child's performance in math, science and English. It can't improve them. Children are spending more time chatting , playing games or sending and they aren't doing their homework. Li Jun, Hunan Now more and more people are buying and selling things on the Internet. Hackers around the world are interested in this. They often break in your system, but it's very difficult to find them. They even can take your money out of the bank. Xiao Yu, Guangdong I'm a 14-year-old girl in Tibet. The Qinghai-Tibet Railway was built in 2006. I can reach Beijing by train in about 48 hours. I can often go to visit my grandpa. Joma, Tibet I'm 13 years old. I want to invent a machine. My machine will _ the earthquake better and make people run to safe places. Lin Yan, Sichuan What is Lin Yan's dream? | [
"To be a hacker.",
"To be a teacher.",
"To be a doctor.",
"To be a scientist."
] | null | D | |
mmlu_stem | mmlu_stem_20102 | what determines the number of body parts and organism is born with? | [
"survival of fittest",
"random chance",
"the organisms creators",
"natural predators"
] | null | C | |
mmlu_stem | mmlu_stem_14026 | One day, Allan and his friend Henry went swimming in a river. It was very hot. How happy they were in the river! After they got out of the water, they played games in the sun for a while. On their way back, Henry saw some flowers. He liked flowers very much and ran into the green field to look at them. Now Allan was walking by himself. Then he heard Henry calling out, "A snake ! Help!..." "What's wrong with you?" asked Allan. "A snake bit me in the leg. Come here!" Allan ran over and saw a small red wound on Henry' s leg. "The snake was in the grass. I didn't see it." "Sit down quickly"! Allan told Henry. Allan put his mouth at the little red wound and began to suck at it. In this way he saved Henry's life. "Oh, Allan, it's very kind of you to help me." "That's all right. We are friends and we must always help each other." It was _ when-Allan and Henry went out. | [
"hot",
"cold",
"raining",
"wet"
] | null | A | |
mmlu_stem | mmlu_stem_18961 | Refraction | [
"makes objects appear to be twice their size",
"moves heat energy thru sound waves",
"is the phenomenon involved in mirrors",
"makes a straw appear broken when in a cup of water"
] | null | D | |
mmlu_stem | mmlu_stem_4904 | The research carried out by the University of Bari in Italy could help clarify hospitals who are charged with wasting money on art and decoration as it suggests a pleasant environment helps patients overcome discomfort and pain. A team headed by Professor Marina de Tommaso at the Neurophysiopathology Pain Unit asked a group of men and women to pick the 20 paintings they considered most ugly and most beautiful from a selection of 300 works by artists such as Lenoardo da Vinci and Sandro Botticelli. They were then asked to watch either the beautiful paintings, or the ugly paintings, or a blank panel while the team struck a short laser pulse at their hand, creating a sensation as if they had been hurt by a pin. The subjects rated the pain as being a third less intense while they were viewing the beautiful paintings, compared with when considering the ugly paintings or the blank panel. Electrodes measuring the brain's electrical activity also confirmed a reduced response to the pain when the subject looked at beautiful paintings. While distractions , such as music, are known to reduce pain in hospital, Prof de Tommaso says this is the first result to show that beauty plays a part. The findings, reported in New Scientist, also go a long way to show that beautiful surroundings could aid the healing process. "Hospitals have been designed to be functional, but we think that their aesthetic aspects should be taken into account too," said the neurologist. "Beauty obviously offers a distraction that ugly paintings do not. But at least there is no suggestion that ugly surroundings make the pain worse. I think these results show that more research is needed into how a beautiful environment can reduce suffering." Pictures they liked included Starry Night by Vincent Van Gogh and Botticellis' Birth of Venus. Pictures they found ugly included works by Pablo Picasso, the Italian 20th century artist Anonino Bueno and Columbian Fernando Botero. "these people were not art experts so some of the pictures they found ugly would be considered masterpieces by the art world," said Prof de Tommaso. The best title for the passage may be _ . | [
"Patients Don't Like Pictures",
"Arts Can Be Used As a Medicine",
"Ugly Patients Feel Less Pain",
"Beautiful Art Can Ease Pain"
] | null | D | |
mmlu_stem | mmlu_stem_11504 | First it was jogging. Then aerobics . Not too long ago, Americans discovered race walking. Now Americans are into a newfitnesscraze. They'retaking up bicycling. Over hills and down mountainsides and across quiet country roads, Americans are busily rolling along. The number of adults who ride for fitness is around 17 million, an increase of 70 percent over four years ago. Twice as many women as men are coming to the sport. Americans arefalling in love withbiking because it has speed, the benefitsofjoggingand beautiful scenery. Bicycling is a very appropriate sport, which is important to people who injured their knees while jogging or whosejointsareachingfrom aerobics. And biking is a real awakening for people who have been into race walking in the past. Race walking isas dull as watching paint dry. The most popular kind of bicycle for people who are new to the sport is the mountain bike, which has afixed framewith wide tires andupright handles. Mountain bikes also have manygears to make it easier to climb hills. About 5 million Americans ride mountain bikes, compared with 200,000 who rode them only five years ago. Costsrangefrom about $130 for abottom-of-the-linebicycle to more than $2,700 for an expensive bicycle. Mountain biking has attracted somepeoplewho race down the sides of mountainslike a bat out of hell. But most riders ride slowly and theyrarelyventurefar from home. The biking craze has brought an unexpected profit to clothing and bicycle accessory makers. Last year, bikers paid $ 630 million for biking clothes and accessories. Bicycling seems likely to continue its fantastic growth. Race walking is about as dull as watching paint dry because _ | [
"race walking is a slow-moving sport",
"the number of adults who ride for fitness has grown 70 percent in four years.",
"it has speed, the benefits of jogging and beautiful scenery.",
"Americans are taking up bicycling."
] | null | A | |
mmlu_stem | mmlu_stem_20573 | Sweat is produced | [
"when sleeping peacefully at night",
"when on a long jog in sweltering weather",
"when sitting in a recliner in an air conditioned house",
"when sitting on the front porch on a breezy day"
] | null | B | |
mmlu_stem | mmlu_stem_13662 | Early to bed, early to rise, makes a man healthy, wealthy and wise. This is an old English saying. Do you know it before? It says that we must go to bed early and get up early in the morning. Then we should be healthy. We should also be rich (wealthy) and clever (wise). This is true. The body must have enough sleep to be healthy. Children of a young age should have ten hours' sleep every night. Children who don't have enough sleep can't do their work very well. They will not be wise and they may not become wealthy! The body also needs exercise. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body strong. Exercise also keeps the blood moving around inside the body. This is very important. Our blood takes food to all parts of our body. The head also needs blood. Exercise helps us to think better! Exercise makes the _ move quickly and smoothly. | [
"body",
"blood",
"children",
"head"
] | null | B | |
mmlu_stem | mmlu_stem_15637 | Try this: for a whole day, _ . Eat when you're hungry and sleep when you're tired. What do you think will happen? You may be surprised to find that your day is much like most other days. You'll probably get hungry when you normally eat and tired when you normally sleep. Even though you don't know what time it is, your body does. Inside our bodies are several clocklike systems that follow a 24- hour cycle. Everyone is unique, which is why you might like to stay up late while your sister always wants to go to bed early. Regularly staying up late can make kids do worse on tests and quizzes. And working shifts at night leads to higher rates of heart disease. "There is a growing sense that when we eat and when we sleep are important parts of how healthy we are," says Steven Shea, Director of the Sleep Disorders Research Program at Brigham and Women's Hospital in Boston. "During the night, we are prepared to sleep," Shea says. "During the day, we are prepared to eat and move around, If you reverse ( ) what you are doing, everything is out of phase. That can have adverse consequences. Everything is out of phase. means _ . | [
"everything is out of order",
"everything is bad",
"everything is good",
"everything is not controlled"
] | null | A | |
mmlu_stem | mmlu_stem_20064 | A flashlight converts chemical energy into what kind of energy? | [
"light snacks",
"greens",
"food",
"illumination"
] | null | D | |
mmlu_stem | mmlu_stem_15234 | If you look at the sky one night and see something moving and shining that you have never seen before, it might be a comet . A comet sometimes looks like a star. Like a planet, a comet has no light of its own. It shines from the sunlight it reflects . Like the earth a comet goes around the sun, but on a much longer path than the earth travels. If a comet isn't a star, what is it then? Some scientists think that a large part of a comet is water frozen into pieces of ice and mixed with iron and rock dust and perhaps a few big pieces of rock. When sunshine melts the ice in the comet, great clouds of gas go trailing after it. These clouds, together with the dust, form a long tail. Many people have seen a comet. However, no one knows how many comets there are. There may be millions of comets, but only a few come close enough for us to see. An Englishman named Edmund Halley, who lived from 1656 to 1742, found out a lot about the paths that comets take through the sky. Some comets move out of our sight and never come back. Others keep coming back at regular times. A big comet that keeps coming back was named after Halley comet, because the last time it came close to the sun and the earth was in the year 1986. Then people all over the world were outside at night to look at it. You will probably be able to see Halley's comet when it comes near the earth again. ,A, B, C, D,. Some comets keep coming back. | [
"at any time",
"at noon",
"at regular times",
"at daybreak"
] | null | C | |
mmlu_stem | mmlu_stem_10089 | 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!" What can we learn about Dr. Marcy from the passage? | [
"He is fond of watching Jupiter.",
"He is from a scientist family.",
"He dislikes working with Paul Butler.",
"He is interested in finding life in outer space."
] | null | D | |
mmlu_stem | mmlu_stem_15502 | I study in the No.5 Middle school. It is a big and nice school. In the school there are more than one hundred teachers and about 2000 students. They all walk very hard. I am in Class 8,Grade One. There are 35 girls and 36 boys in my class. Our classroom is very big and bright. There are four windows in the wall of the classroom. They are very big. On the back wall there is a map of China. On the front wall there is a map of China. In the front of the blackboard there is a big desk. It's for our teachers. In the classroom there are seventy-one desks and chairs. All the desks and chairs in it are new. We go to school at seven in the morning. Classes begin at half past seven. We have eight lessons a day. We study Chinese, English ,maths and other lessons. All of us like English very much. Some are very good at it. In the afternoon we have sports. At six o'clock we go home. In the evening we often do our homework. Sometimes we watch TV. The classroom of Class 8 is very _ . | [
"small",
"bright",
"nice",
"old"
] | null | B | |
mmlu_stem | mmlu_stem_586 | Which of these will reduce the gravitational force between two objects the most? | [
"halving the distance between them",
"doubling the distance between them",
"halving the distance between them and doubling their mass",
"doubling the distance between them and halving their mass"
] | null | D | |
mmlu_stem | mmlu_stem_11859 | The house was quiet at 5 am and Tim's mother was asleep. Only the sound of the big freezer broke the quiet. He'd dreamt of the cave last night. The purring of the freezer had been the sea . Tim pulled on a sweater and put some apples into his schoolbag. It was too early for breakfast. He'd eat after he'd been through the cave, sitting on the rocks and staring at the sea. He wished he had a proper pack. His schoolbag would have to do. What else? Sandwiches--but his mother might wake up if he started pulling out bread for sandwiches, she'd want to know why he had to leave so early. , and left a note stuck to the table: Gone to Michael's. Back tonight. Tim. The sky was high and soft and light outside, though the sun still wasn't up. Even the highway up the hill was quiet as he made his way down the street. The wind from the sea was fresh and sweet. The sandhills still breathed heat from yesterday's sun, though the top of the sand was cool. He ran down to the beach impatiently, but there was no one, just dry sand dancing in the early wind and seabirds marching up and down watching the waves. The light changed suddenly. The first rays of sunlight stretched across the sea . The sun was pushing its way over the edge of the world. Over the first rocks, along to the point. Tim glanced back. The beach was still empty. The sun sailed higher in the sky. He could see the cave now, even darker in the morning light. The sand turned silver then dark gold as the water flowed away from it. He had to force himself to go closer. Why was it so much more mysterious now ? But it would be silly to go back now after so much trouble. He needn't go in all the way ... What made it possible for Tim to see the entry to the cave? | [
"The height of the first rocks.",
"The ups and downs of the waves.",
"The change in the position of the sun.",
"The vast stretch of the sunlit beach."
] | null | C | |
mmlu_stem | mmlu_stem_21932 | A dead giant sequoia | [
"turns into mistletoe",
"flies away",
"drops pine needles",
"falls down"
] | null | D | |
mmlu_stem | mmlu_stem_16753 | What's the most important thing for you to have in your life? Somebody mentions hard-work, others suggest knowledge, love and luck. If you arrange the 26 English letters alphabetically and use numbers to represent each of them, for example, 1 for a, 2 for b, 3 for c..., you can change an English word into a number. So hard-work becomes 8+1+18+4+23+15+18+11="98," meaning 98 is its mark; knowledge: 11+14+15+23+12+5+4+7+5="96," while love: 12+15+22+5="54," and luck: 12+21+3+11="47," a small mark. None of these words can give one a full mark. What about money? It can't , either. Then what else? Don't be worried. You can always find an answer to a problem in your life, when you change your way of looking at things or doing things, or your attitude. Yes, attitude is the word. See for yourself: attitude:1+20+20+9+20+21+4+5=100,a full mark. Most times people hope for a better life. It is possible if you will have a change for the better after you have changed your attitude. When you change your manner and become friendly to others, you'll meet more smiling faces towards you. Which number can you use to represent "money" according to the passage? | [
"70",
"72",
"74.",
"76."
] | null | B | |
mmlu_stem | mmlu_stem_2290 | If water gets into the crack of a rock and then freezes, the rock will MOST likely | [
"break apart",
"be able to float",
"become larger",
"change colors"
] | null | A | |
mmlu_stem | mmlu_stem_13240 | In our daily lives, Wechat is really hot now. Many people express themselves, exchange ideas and deliver information by Wechat. There are a number of reasons for Wechat to be popular. To begin with, Wechat is a cheap way of communication, which cuts down a great deal of the cost made by phone calls. Next, Wechat is to the taste of the most of people. Its attractive and lots of functions are loved widely. What's more, convenience also leads to its popularity. It is _ no matter where we are. However, it has problems, too. First of all, our IDs might be revealed when we use Wechat and we could be in danger. Secondly, we may spend more time on Wechat instead of with our family. As a result, relationship could break down. The last problem is that our attention might be drawn too much and sometimes we may find it difficult to focus on study. There is no doubt that Wechat will improve as time goes by. So let's look forward to the better Wechat and have more fun with it. What can't we do by Wechat ? | [
"Express ourselves.",
"Exchange ideas.",
"Make phone calls.",
"Deliver information."
] | null | C | |
mmlu_stem | mmlu_stem_9585 | I lost my left eye just after my first birthday -- I'd fallen seriously ill. My artificial eye was very convincing and I usually wore glasses over it -- even my boyfriend, Mick, didn't really notice. I told him I was blind in one eye just before we got married -- I was 19 at the time. He said he didn't care and that he loved me just the same. The day before we married, I was at my parents' house, when my other eye suddenly went blurry . My dad phoned the doctor, who told him it was probably nerves and I'd be fine by morning. He was right -- when I awoke, I was able to read my good luck cards. The wedding photographer arrived just as I was putting on my dress and I was called into the garden for a pre-ceremony photo. There was no time even to look in a mirror. Afterwards, we drove straight to the church. It was a sunny day, and as we approached I could see all our friends waiting. The service was delightful, and Mick and I went into the minister's office to sign the register -- the last thing I ever wrote with my sight. It was only when we reached the hotel, where the reception was taking place, that I started to feel strange. As we waited to greet our guests, my sight started to become blurry again and I really had to concentrate as our friends and family lined up to congratulate us. Afterwards, we went into the reception room, so the photographer could take our picture as we pretended to cut the cake. That's when the pain started. "Don't let anyone know!"my mum said. She'd always blamed herself for the loss of my other eye, wishing she'd taken me to the doctor earlier. Only a few family members had ever been told -- even my close friends had beennone the wiser. So even as the pain became more severe, I carried on as if nothing was happening. I'd waited so long for this day, and everyone seemed so happy, I didn't want to spoil things. I couldn't make anything out, but I managed tostay calm and made it through the meal and the speeches. I suppose it's normal for the bride and groom to stay close together after a wedding, and Mick led me around properly. We took regular dance lessons, so the first dance passed without incident, Mick leading me in a slow, graceful waltz. Afterwards, we left the building to see if a bit of air would improve the situation, but it didn't help, and nor did a lie-down. I still thought the blurriness would pass, as it had the night before. But I finally accepted that things just weren't going to get better on their own -- I was in so much pain. Mick sent for a doctor, who took one look at me and called for an ambulance. At the hospital, I remember a nurse bursting into tears when she saw me arrive -- I still had confetti in my hair. I was diagnosed with glaucoma, a disease in the eye that causes terrible pressure -- it was unrelated to the problems I'd had as a child, just a coincidence. An operation to try to save my sight seemed successful at first -- as the bandages were removed, I remember seeing a vase of flowers at the end of the bed. But it's the last thing I ever saw. It was hard, but I coped, and nearly 40 years on I feel I've had a full and active life. There are sights I'll always feel sad not to have seen -- the face of the daughter and my grandchildren. I'll always regret not finding the time to look in the mirror on the morning of my wedding, too -- despite everything that happened, I have happy memories of the ceremony. Why did the nurse at the hospital cry suddenly? | [
"Because she felt sad for the writer's experience.",
"Because she felt amazed at their happy marriage.",
"Because she was afraid of the writer's appearance.",
"Because she was moved by Mick's selfless love for the writer."
] | null | A | |
mmlu_stem | mmlu_stem_1303 | When a baby shakes a rattle, it makes a noise. Which form of energy was changed to sound energy? | [
"electrical",
"light",
"mechanical",
"heat"
] | null | C | |
mmlu_stem | mmlu_stem_8956 | "If you want to see something well, reach out and touch it!" That may seem a strange thing to say.But touching things can help you to see them better. Your eyes can tell you that a glass ball is round.But by holding it in your hands, you can feel how smooth and cool the ball is.You can feel how heavy the glass is.When you feel all these about the ball, you really see it. With your skin, you can feel better.For example, your fingers can tell the difference between two coins in your pockets.You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin.Have you ever wanted to know why some people like very loud music? They must like to feel the sounds of music. All children soon learn what "Don't touch!" means.They hear it often.Yet most of us keep on touching things as we grow up.In shops, we often have to touch things before we buy them. The bottoms of our feet can feel things, too.You know this when you walk on warm sand, cool grass or a hard floor.All feel different under your feet. There are ways of learning to see well by feeling.One way is to close your eyes and try to feel everything that is touching your skin.Feel the shoes on your feet, the clothes on your body, the air on your skin...... Most museums are just for looking.But today some museums have some things to touch.Their signs say, "Do touch!" There you can feel everything on show. Which of the following best serves as the best title of the story? | [
"Touching by Feeling",
"To See or to Feel",
"Seeing by Feeling",
"Seeing Is Believing"
] | null | C | |
mmlu_stem | mmlu_stem_17010 | QQ is one of the most popular chat tools among teenagers .We regard it as an important chat tool in our daily life because it has some advantages . First, we can make lots of e-friends on QQ.It is easy to find the person who has the same interest as us ,and we can talk with him or her happily .Second ,we can also join a QQ group to find the information we need .For example ,if we want to learn English well ,we can choose a group with many English lovers in it .Third ,we can also play games with our friends on QQ and always have fun . QQ brings us a lot of benefits ,but it can also cause some problems .It's dangerous to tell strangers on QQ our real personal information like telephone numbers , addresses and ID numbers .If we spend too much time chatting online ,it won't be good for our study and health . If we want to learn English well ,we can _ . | [
"do shopping on QQ .",
"always chat in Chinese on QQ .",
"play games with our friends on QQ .",
"join a QQ group with many English lovers in it ."
] | null | D | |
mmlu_stem | mmlu_stem_6808 | You may complain that there are too many tests on the way to college entrance, but an increasing number of students want to take one more. That is the Scholastic Aptitude Test, or SAT, an American test for students who intend to apply for college admission. Chen Huanlu, aged 18, from Shandong Province took part in the SAT subject tests (SAT 2) in Hong Kong on June 2. She has also been scheduled to take the SAT reasoning test (SAT 1) in October. "I hope to study environmental engineering at an American university, where I may have more opportunities to get cutting-edge knowledge in this area," said Chen. However, not all SAT test takers want to apply to American universities. "I wanted to see how I would do when faced with plenty of stress and also to evaluate my scholastic level by an American standard. The SATs made my school life more diverse," said Senior 2 student Zhou Yuxiang from Sichuan Province. Zhou, aged 17, a top student in his school, was inspired by some of his friends. They have taken this test and been admitted to American universities, including Harvard and Yale. Last winter vacation he took a 20-day SAT course at Chengdu New Oriental School. "As I prepared for the test in the following months, I was forced to balance my everyday schedule better. Fortunately I was optimistic enough to have undergone the most difficult time," he said. In May and June, Zhou flew alone to Hong Kong to sit for the SAT1 and SAT2. "They are both the standards which have been set for us to reach. What we should do more sensibly is to try harder to prepare for them. Survival of the fittest is true both in America and in China. That is something I have learnt beyond the SAT itself," he said. What do Chen Huanlu and Zhou Yuxiang have in common? | [
"They both took part in the SAT subject tests in Hong Kong.",
"They are both students of Senior 2.",
"Both of them attended a SAT course at New Oriental School.",
"Both of them came from the top schools."
] | null | A | |
mmlu_stem | mmlu_stem_1092 | Based on the Doppler effect, the electromagnetic waves reaching Earth from a galaxy that is moving away from Earth would be expected to | [
"experience an increase in their amplitude.",
"experience an increase in frequency.",
"experience a decrease from transverse waves to longitudinal waves.",
"experience a decrease in frequency."
] | null | D | |
mmlu_stem | mmlu_stem_747 | Oscar is investigating how many days it takes for a chick to hatch from an egg. Which number of eggs would give Oscar the most reliable results? | [
"1",
"3",
"5",
"7"
] | null | D | |
mmlu_stem | mmlu_stem_14158 | Birds live in the trees. Squirrels live in the trees. But do you know that some frogs live in the trees, too? The tree frog is hard to find. It can change colors. On green leaves, it stays green. On a brown branch ,it turns brown. Some tree frogs can change from green to gold or blue. Tree frogs have legs and wide feet. They have sticky pads at the end of their toes. These sticky toe pads keep the tree frogs from falling off the trees. Tree frogs have different colors and markings on their skins. Their eyes are different, too. Some have green eyes, and others have bright red ones. The sounds they make are different, too. One frog makes a sound like a dog barking .Another frog makes a loud noise like a snore .There is even a frog that whistles ! The color of tree frogs on green leaves is _ . | [
"gold",
"brown",
"green",
"blue"
] | null | C | |
mmlu_stem | mmlu_stem_7864 | There are 115 distinct species of pine trees with 35 native to North America. Pines are defined as evergreens with long, needle-like leaves and are only native to the northern hemisphere. Pine trees are an adaptable and tough species that can survive in many conditions where other plants cannot. The average pine is 45 to 60 feet tall, but some are nearly twice as high. Western White Pine The western white pine grows the tallest of any pine tree, reaching up to 110 feet in height. They have blue-green needles arranged in bundles of five and produce a long cone . Bristlecone Pine The bristlecone pine grows slowly, reading about 20 feet tall. It is one of the oldest species of pine. Mexican Pine The Mexican pine can grow to 50 feet tall, with long, slender needles that drape off it like a weeping willow . Often nicknamed the "willow pine", it is native to Mexico. Its leaves can droop up to 12 inches long. Sugar Pine The sugar pine is another of the large pine species, such as the bull pine, but it also has the largest cones of any pine species, at 10 to 20 inches long. It grows from Oregon to California and is often used for construction. Jack Pine The jack pine is one of the smallest species of pine with rare leaves. Compared with the pines mentioned above, it doesn't seem to belong to the family. It is considered a member of the scrub-pine family; it prefers sandy soil. We can learn from the passage that _ . | [
"the Mexican pine has the longest leaves",
"the Jack pine doesn't seem to belong to the same family as the other pine trees",
"the bull pine is a kind of little pine tree",
"all the pine trees mentioned have a great number of leaves"
] | null | B | |
mmlu_stem | mmlu_stem_18608 | The periodic table provides information about the atoms of different elements. Which is a characteristic of an atom determines what element it is? | [
"number of neutrons",
"number of protons",
"state of matter",
"atomic mass"
] | null | B | |
mmlu_stem | mmlu_stem_19539 | Pelicans have an affinity for | [
"Sushi",
"Cats",
"Trash",
"Mackerel"
] | null | D | |
mmlu_stem | mmlu_stem_17637 | Which of the following helped lead to the invention of personal computers? | [
"Internet",
"keyboard",
"wireless transmitter",
"integrated circuit"
] | null | D | |
mmlu_stem | mmlu_stem_6163 | Passwords are no safeguards Typing your password or credit card number into a computer is a moment's work. But if you think your personal details disappear as soon as you hit the Return key, think again: they can sit on the computer's hard disk for years waiting for a hacker to take them. As people spend more time on the web and hackers become more experienced, the dangers of storing personal information on computers are growing by the day, security experts say. There are some safe-guards, such as never allowing your computer to store your passwords. But even that in no guarantee of security. When you type in a password, it is stored in random access memory (RAM), where it is held temporarily until other data overwrites it or the computer is switched off. But every so often , the computer copies the contents of its RAM onto hard disk, where it is easy to prey for a hacker, who can read it directly or design a worm to e-mail it back. The longer sensitive data stays in RAM, the more likely it is to be copied onto the disk, where it stays until it is overwritten-which might not happen for years. Tal Garfinkel and colleagues from Stanford University have created a software tool which simulates the workings of a complete computer system. Within the simulation, sensitive data can be tagged and then tracked as it passes through the system. Next, Garfinkel and his team simulated computers running common software that regularly handles passwords or secret personal information, such as Internet Explorer, the Windows login script and Apache server software. In a paper to be presented, they conclude that the programs took no measures to limit the length of time the information is kept. Some of the tested software even copied the sensitive information, obviously without restraint . Talking about computer safety, which of the following the writer would probably suggest? | [
"People should stop using computers.",
"Hackers should be heavily punished.",
"Better computer programs are needed.",
"Program developers are to blame."
] | null | C | |
mmlu_stem | mmlu_stem_22336 | Which of these are inherited instead of acquired? | [
"wealth",
"height",
"prison time served",
"wisdom"
] | null | B | |
mmlu_stem | mmlu_stem_17161 | When light is bounced off a mirror, the light is | [
"reflected.",
"refracted.",
"absorbed.",
"diffracted."
] | null | A | |
mmlu_stem | mmlu_stem_15671 | Read the instructions of the medicine before you take your choices. Adults : 2 tablespoonfuls Children: according to age 10----14 years 4 teaspoonfuls 5----10years 2 teaspoonfuls 3----6 years I teaspoonful Repeat above doses every 1/2 hour to 1 hour if needed until 8 dose are taken. If you do not get better within two days, see a doctor. SHAKE WELLBEFORE USING. For whom would a dose of two teaspoonfuls be given? | [
"A grown-up",
"A 10 - to-14 - year- old child",
"A 6 - to-10 - year- old child",
"A 3 - to- 6 - year- old child"
] | null | C | |
mmlu_stem | mmlu_stem_20325 | A ferromagnetic metal, such as in paper clips, can stick to other paper clips without hooking together | [
"when outside",
"when iron touches",
"when floating",
"when burned"
] | null | B | |
mmlu_stem | mmlu_stem_543 | If a new moon occurred on June 2, when will the next new moon occur? | [
"June 30",
"June 28",
"June 23",
"June 15"
] | null | A | |
mmlu_stem | mmlu_stem_5158 | Although we already know a great deal about flu, and although the World Health Organizations is constantly collecting detailed information from its chain of flu reference laboratories throughout the world, it is extremely difficult for epidemiologists, who study infectious diseases, to predict when and where the next flu epidemic will occur, and how serious it will be. There are three kinds of flu virus, known as A, B and C. flu C virus is ly stable and causes mild infections that do not spread far through the population. The A and B types are unstable, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies which can be changed into immunity to that type of virus but a virus with the ability to change its character is able to bypass this protection. Variability is less developed in the flu B virus, which affects only human beings. As flu B virus may cause a widespread epidemic but will have little effect if introduced into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The flu A virus, which affects animals also, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the world epidemic, of 1918&1919, when about half the world's population were infected and about twenty million people died, some from pneumonia caused by the virus itself and some from secondary complication caused by bacteria. Accurate prediction is difficult because of the complication of the factors. A particular virus may be related to one to which some of the population have partial involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence , the ease with which it can be transmitted and the strength of the opposition it encounters . Scientists, however, have a reliable general picture of the world situation. Which of the following is NOT mentioned as a factor contributing to the extent to which a virus spreads? | [
"The strength of the virus.",
"The ease with which the virus can be transmitted.",
"The strength of the opposition.",
"The immunity the virus can bring about."
] | null | D | |
mmlu_stem | mmlu_stem_10233 | Owls are mysterious creatures. We often think of them as scary. They sometimes live in abandoned houses. They fly without a sound through backyards at night. In stories, they appear with ghosts. When we hear an owl's familiar "whooo...whooo...",it can make us feel very frightened. Owls fly silently, without even a whisper of wings moving through the air. It's as though they appear out of nowhere--like ghosts on wings. Owls fly and hunt on the darkest of nights. An owl's night habits make it unique. Do these creatures of the night possess strange powers? Owls possess unusual powers of sight and hearing, but they are not supernatural powers. They are natural adaptations that let them live most efficiently at night. There is no reason to fear owls. Their habits make them helpful to humans. By hunting mice and other rodents ,owls help to keep a natural balance between plant and animal life. Without owls, there would be a large number of rodents in farmers' fields and storage barns. More than 100 species of owls occupy a variety of habitats around the world. A few oceanic islands and the Antarctic have no owls. The world's owls come in large, medium, small, smaller, and smallest. For example, the Eurasian eagle owl--one of the largest--has a body that is two to three feet long, with a wingspan of up to five and onehalf feet. The North American elf owl (the world's smallest owl) is five to six inches long and has a wingspan that measures slightly more than one foot. Most male and female owls of the same species look alike, although females are usually larger. In some species, the female's colors are like those of the trees or grass where she makes her nest. Baby owls, called chicks, stay with their parents until they are about three months old. They soon find their own hunting areas, where they may stay for the rest of their lives. Some owls can live 20 years or more. Owls help humans in that they _ . | [
"help preserve the balance of nature",
"frighten rodents away from humans",
"have unusual powers",
"help guard backyards"
] | null | A | |
mmlu_stem | mmlu_stem_19563 | running turns carbohydrates into | [
"fat",
"sweat",
"motion and heat",
"protein"
] | null | C | |
mmlu_stem | mmlu_stem_3111 | If you're tired of the Mediterranean and don't want to head to Disney again, perhaps it's time for a summer holiday in space. Russia has declared plans for its first floating hotel, 217 miles above earth, and it is something of an offering with good service. Hosting just seven guests in a four cabins, the accommodation will boast huge windows with views back to earth and tasty microwave meals will be served instead of the ones often used by astronauts. Just getting there will be an adventure in itself--it will take two days aboard a Soyuz rocket--and it won't exactly be a _ holiday: A five-day stay will cost youPS100, 000 toPS500, 000 for your journey. The hotel is due to open by 2016 and, according to those behind it, will be far more comfortable than the International Space Station (ISS) used by astronauts and cosmonauts. In the weightlessness of space, visitors can choose to have beds that are either vertical or horizontal. Tourists, who will be accompanied by experienced crew, will dine on food prepared on Earth and sent up on the rocket, to be reheated in microwave ovens. Many kinds of delicacies will be available. Iced tea, mineral water and fruit juices will be available, but alcohol will be strictly prohibited. Toilets will use flowing air instead of water to move waste through the system. Waste water will be recycled. Sergei Kostenko, chief executive of Orbital Technologies which will construct the hotel, said: "Our planned module inside will not remind you of the International Space Station. A hotel should be comfortable inside, and it will be possible to look at the Earth. The hotel will be aimed at wealthy individuals and people working for private companies who want to do research in space." The hotel can also be used as an emergency bolthole for astronauts aboard the International Space Station if there is a crisis. Which of the following statements is TRUE according to the passage? | [
"The space hotel is built to remind you of the International Space Station.",
"The hotel is constructed with big windows so that tourists can see the earth.",
"The company, Orbital Technologies, has already begun to build the space hotel.",
"In the near future, a space trip for most of the people can be reali... | null | B | |
mmlu_stem | mmlu_stem_531 | Which celestial object listed below has the greatest density? | [
"a planet",
"a comet",
"a nebula",
"a neutron star"
] | null | D | |
mmlu_stem | mmlu_stem_10595 | Supermarkets are trying out new computers that make shopping carts more intelligent. _ will help shoppers find paper cups or toilet soap, and keep a record of the bill. The touch-screen devices are on show at the Food Marketing Institute's exhibition here this week, "These devices are able to create value and get you around the store quicker," said Michael Alexander, manager of Springboard Retail Networks Inc., which makes a smart cart computer called the Concierge. Canadian stores will test the Concierge in July. A similar device, IBM's "Shopping Buddy", has recently been test-marketed at Stop & Shop stores in Massachusetts. Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thoughts that maybe you should put something back on the shelf. "The whole model is driven by advertisers' need to get in front of shoppers," said Alexander. "They're not watching 30-second TV ads anymore." People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system that will organize the trip around the store. If you're looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them. The device also keeps a record of what you buy. When you're finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay. The new computerized shopping assistants don't come cheap. The Buddy devices will cost the average store about $ 160, 000, and the Concierge will cost stores about $ 500 for each device. What might be the most suitable title for the text? | [
"New age for supermarkets",
"Concierge and Shopping Buddy",
"New computers make shopping carts smarter",
"Touch-screen devices make shopping enjoyable"
] | null | C | |
mmlu_stem | mmlu_stem_12666 | A young man once went to town and bought himself a pair of trousers. When he got home, he found that they were about two inches longer. He went to the kitchen, there his mother and two sisters were doing housework. He said to them, "The new trousers are too long. Could one of you help me to shorter them by two inches?" But they were too busy. They said nothing and were still working. After his mother finished washing all plates, she shortened the trousers by two inches. Then one of his sisters remember his trousers and shortened them by two inches. When the other sister came back home from cinema, she also remembered the new trousers. "I nearly forgot that." She thought. Then she shortened them by two inches. The new trousers were too _ . | [
"long",
"short",
"big",
"small"
] | null | A | |
mmlu_stem | mmlu_stem_9369 | CALCUTTA, India Mar 24, 2006 (AP) -- One of the world's oldest creatures, a giant tortoise believed to have been about 250 years old, has died in the Calcutta zoo where it spent more than half its long life. Addwaita, which means "the one and only" in the local Bengali language, was one of four Aldabra tortoises brought to India by British sailors in the 18th century. Zoo officials say he was a gift for Lord Robert Clive of the East India Company, who was instrumental in establishing British colonial rule in India, before he returned to England in 1767. Long after the other three tortoises died, Addwaita continued to thrive , living in Clive's garden before being moved to the zoo in 1875. "According to records in the zoo, the age of the giant tortoise, Addwaita, who died on Wednesday, would be about 250 years," said zoo director Subir Chowdhury. That would have made him much older than the world's oldest documented living animal: Harriet, a 176-year-old Galapagos tortoise who lives at the Australia Zoo north of Brisbane, according to the zoo's Web site. She was taken from the island of Isla Santa Cruz by Charles Darwin in the 19th century. Aldabra tortoises come from the Aldabra atoll in the Seychelle islands in the Indian Ocean, and often live to more than 100 years of age. Males can weigh up to 550 pounds. Addwaita, the zoo's biggest attraction, had been unwell for the last few days, said local Forest Minister Jogesh Burman. "We were keeping a watch on him. When the zoo keepers went to his enclosure on Wednesday they found him dead," Burman said. In the last few days before Addwaita died, he _ . | [
"had been sent to hospital for treatment",
"had been playing with travelers",
"had been found not better than before",
"had stayed in his enclosure for months"
] | null | C | |
mmlu_stem | mmlu_stem_6633 | When Dr Jane Goodall was a kid growing up in England, she dreamed of one day living among wild animals. That opportunity came when Goodall was 26 years old. Goodall moved to the African country and spent 25 years there. What she learned about chimpanzees fascinated people all over the world. After studying animals for the first part of her career, Jane Goodall began working to protect not only chimpanzees, but all creatures. Her new book,"Hope for Animals and their World," is a collection of conservation success stories. Time For Kids talked to Goodall about her new book and her advice for young people. TFK: What inspired you to write a book about conservation success stories? Dr Goodall: Because of all my travels , I meet these extraordinary people and hear about these amazing project, and they really do give hope. They show that we can turn thing around. TFK: Why are these stories important? Goodall:There are a lot of young people who are going out and wanting to save species, and they are so often told,"Give up. It's hopeless." And if we have that attitude, then soon there will be noting left. TFK: How should kids who want to help get started? Goodall: Join Roots and Shoots. It gives them an opportunity to interact with other young people. The website at www.rootsandshoots.org is a way for them to learn more. ,A.B.C.D . (3;1.5,4.5) In the interview, Dr Goodall was asked question about _ | [
"her career as a biologist",
"the development of her research",
"her new book and her advice to kids",
"her recent trip to Africa"
] | null | B | |
mmlu_stem | mmlu_stem_1659 | Jack woke up on a Saturday morning. He got out of bed and went to the bathroom, and brushed his teeth. He put on his clothes and walked to the kitchen. Jack had a few choices to pick for breakfast. He could choose between an apple, pear, cereal or eggs. He picked an apple to eat for breakfast. After his breakfast, he turned on the TV to find something to watch. He could watch sports, the news, the weather or a cooking show. He chose to watch the weather. The reporter said fall was coming but that the weather was getting warmer instead of cooler. He turned off the TV and went outside to the backyard. Jack wanted to make some hot dogs for lunch the next day. He went to the store to get hot dogs, mustard, and ketchup. After coming back home from the store, Jack made lunch. After lunch, he found that he needed to do some cleaning. He started cleaning the kitchen and moved on to the living room. What did Jack watch on TV? | [
"the news",
"the weather",
"cooking show",
"sports"
] | null | B | |
mmlu_stem | mmlu_stem_18018 | The endangered Florida manatee is a large, aquatic mammal that feeds on sea grasses in brackish water. Due to where they like to feed, manatees are vulnerable to injuries from boat propellers. If speed zones requiring boats to maintain a low speed are placed in areas where manatees are known to congregate, which will most likely occur? | [
"less water pollution in manatee habitats will occur",
"manatees will seek alternate food sources",
"new manatee predators will surface",
"manatee populations will increase"
] | null | D | |
mmlu_stem | mmlu_stem_9527 | How can you find out what is going on inside a person's body without opening the patient's body up? Regular X rays can show a lot. CAT scans can show even more. They can give a complete view of body organs. What is a CAT scan? CAT stands for a kind of machine. It is a special X-ray machine that gets a 360-degree picture of a small area of a patient's body. Doctors use X rays to study and determine diseases and injuries within the body, X rays can find a foreign object inside the body or take pictures of some inside organs to be X-rayed. A CAT scanner, however, uses a group of X rays to give a cross-sectional view of a specific part of the body. A fine group of X rays is scanned across the body and around the patient from many different directions. A computer studies the information from each direction and produces a clear cross-sectional picture on a screen. This picture is then photographed for later use. Several cross sections, taken one after another, can give clear "photos" of the entire body or of any body organs. The latest CAT scanners can even give clear pictures of active, moving organs, just as a fast-action camera can "stop the action", giving clear pictures of what appears unclear to the eye. And because of the 360-degree pictures, CAT scans show clear and complete views of organs in a manner that was once only shown during operation or examination of a dead patient. Frequent appearance before X rays can cause skin burns, cancer or other damage to the body. Yet CAT scans actually don't cause the patient to more radiation than regular X rays do. CAT scans can also be done without getting something harmful into the patient, so they are less risky than regular X rays. CAT scans provide exact, detailed information. They can quickly find such a thing as bleeding inside the brain. They are helping to save lives. What is NOT true of a CAT scan? | [
"It is safer than regular X rays.",
"It makes use of computer techniques.",
"It can stop the action of an organ for a short time.",
"It gives clear pictures of active, moving body parts."
] | null | C | |
mmlu_stem | mmlu_stem_4048 | If you are a high school senior graduating and looking to enter college in 2006, you will take the new exam. The biggest change to the SAT will be the introduction of a new writing section. The writing section will consist of two parts: an essay and a multiple-choice section. Students will be given 25 minutes to respond to a prompt and construct a well-organized essay that effectively deals with the task. The essay question may require students to complete a statement, to react to a quote, or to agree or disagree with a point of view. In any case, a good essay will support the chosen position with specific reasons and examples from literature, history, art, science, current affairs, or even a student's own experiences. Essays will be scored based on the procedures for the current SAT II: Writing Test. Essays will be graded by two independent readers On a scale of 1~6, and their two scores will be combined to form an essay subscore that ranges from 2 to 12. Should the readers' scores vary by more than 2 points, a third reader will score the essay; The readers will be high school teachers and college professors who teach composition. To ensure that essays will be scored in a timely manner, they will be scanned and made available to readers on the Internet for grading purpose. The writing section will also include multiple-choice grammar and usage questions. Some of these questions will call upon students to improve given sentences and paragraphs. Others will present students with sentences and require them to identify mistakes in diction , grammar, sentence construction, subject-verb agreement, proper word usage. The highest possible score on the new writing section will be 800. Scores on the essay and multiple-choice section will be combined to produce a single score. A writing subscore will also be assigned. The highest possible scores on the Critical Reading and Math sections will remain 800 each, making 2,400 a perfect score on the new SAT. Which of the following statements is NOT true according to the passage? | [
"The SAT is designed for high school seniors wishing to enter a college.",
"The writer criticized the multiple-choice in the SAT.",
"Good specific examples are encouraged in essay writing.",
"The SAT consists of the Critical Reading, Math and the Writing sections."
] | null | B | |
mmlu_stem | mmlu_stem_22521 | When a creature experiences feeling, they are likely | [
"making really good choices",
"taking the next train",
"sensing a thing's texture",
"dead from complete exhaustion"
] | null | C | |
mmlu_stem | mmlu_stem_18649 | Some types of trees are able to survive the heat of a forest fire. Which of the following characteristics would best help a tree survive a fire? | [
"large leaves",
"shallow roots",
"thick bark",
"thin trunks"
] | null | C | |
mmlu_stem | mmlu_stem_17001 | Tomorrow is Mother's Day. Susan wants to give a present to her mother. Father tells her to go to the shop and try to find something. Susan hurries to the shopping center and goes to the women's store. She has $3.00. First she thinks she will get her mother something to wear. Then she thinks she will buy something for her to use . But she only has $3.00. She can't buy any nice dress. She sees a nice red hat. She knows her mother will like it. But it is too expensive. It is $10.00. The saleslady looks at her and then looks at the hat. She takes off the price tag and says, "That's exactly $3.00. " Where does Susan go? | [
"To the shop.",
"To a book shop.",
"To the women's store.",
"To the supermarket."
] | null | C | |
mmlu_stem | mmlu_stem_17913 | The number of squirrels in a certain ecosystem changes over time. These changes can be represented as a number of connected data points. Which method would a student most likely use to show this information? | [
"pie chart",
"line graph",
"pictogram",
"data table"
] | null | B | |
mmlu_stem | mmlu_stem_13724 | She's a lovely girl. She has long and black hair. She is quite tall and slim. Her eyes are bright and black. She is 13 years old. She is good at singing. She likes listening to music. She is S.H.E.'s fan . Do you know Conan? He is a little detective .The lovely girl also likes him. Oh, sorry. I forget to tell you who the girl is. It's me. I'm a lovely girl. You can call me Kacely or Kacelin. Now I study at Sunshine Middle School. I'm in Class 1, Grade 7. Every day, I get up at 6:00 a.m. The classes begin at 7 o'clock. I like lunchtime because I can chat with my friends at that time. After school, I usually play badminton with my friends. I like playing badminton and I am good at it. I want to be a superstar when I grow up. Conan is a _ . | [
"policeman",
"teacher",
"doctor",
"detective"
] | null | D | |
mmlu_stem | mmlu_stem_11350 | Scientists are making new studies of color and its effects on our health. They have known for a long time that the color of a room or the color of the light in it can affect our feelings and emotions. Many prisons and hospitals have at least one room that is painted pink. Officials have found that light and color can produce physical changes in our bodies. Professor Falfan worked with a group of 9 disabled children at school in Albert. Two of the children were blind. The other seven had normal sight. The scientists changed the color of the school room, then looked for changes in blood pressure, heart beat and breathing rate. The effects of color changes were the same for the blind children as for those with normal sight. Their blood pressure dropped from about 120 to 100. Similar changes were reported in heart-beat and the breathing. The children also were calmer and less excited. Then the colors of the room were returned to orange and white. Blood pressure, heart-beat and breathing rate went up and the children became excited again. Professor Falfan said different colors produce different levels of light energy. He said the differences seem to affect chemicals in the brain that carry messages from nerve to nerve and from nerve to muscle. Light and color can affect _ . | [
"only one's feelings and emotions",
"one's energy",
"one's mental changes",
"one's heart-beat, brain activities, blood pressure, feelings and emotions"
] | null | D | |
mmlu_stem | mmlu_stem_1348 | Which type of energy does a person use to pedal a bicycle? | [
"light",
"sound",
"mechanical",
"electrical"
] | null | C | |
mmlu_stem | mmlu_stem_7664 | SEE a cell phone cover that you like on Taobao? Forget about placing an order, paying the bill online and waiting for days for it to be delivered to you. In the near future, you'll be able to get it in minutes just by hitting "print" on your computer. You might find it hard to believe that you could actually "print" an object like you would a picture. But it is not that hard to understand how it would work. Just as a traditional printer sprays ink onto paper line by line, modern 3-D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape. Instead of ink, the materials the 3-D printer uses are mainly plastic, resin and certain metals. The thinner each layer is --- from a millimeter to less than the width of a hair --- the smoother and finer the object will be. This may sound like a completely new technology, but the truth is that 3-D printing has been around since the late 1980s. Back then, it was barely affordable for most people, so few knew about it. Last year, though, saw a big change in the 3-D printing industry--- printers became much cheaper. For example, 10 years ago a desktop 3-D printer might have cost PS20,000 (200,000 yuan), while now they cost only about PS 1,000, according to the BBC. Taken out of the factory and introduced to more diverse and common uses, 3-D printing can create just about anything you can think of ---flutes , bikinis, jewelry, aircraft parts and even human organs. In fact, scientists from Cornell University in New York have just made an artificial ear using a 3-D printer, according to Science Daily. The fake ear looks and acts exactly like a natural one. However, as 3-D printing becomes more commonplace, it may bring about certain problems --- such as piracy. "Once you can download a coffee maker, or print out a new set of kitchen utensils on your personal 3-D printer, who will visit a retail store again?" an expert in 3-D printing told Forbes News. Even more frightening, what if anyone in the world could use a 3-D printer to print out a fully functioning gun? What is the best title of the passage? | [
"Printing out everything",
"Technology in the future",
"Online shopping disappearing",
"Great demand for 3-D printers"
] | null | A | |
mmlu_stem | mmlu_stem_13092 | There was an old pear tree in a man's garden. In the past, tie tree fruited every year, .so the man would get many pears. But now, the tree got old. There were no more pears for the man. So the ungrateful man decided to cut the tree down. When he walked toward the tree with an axe in his hand, the tree said to him, "Please don't cut me down. I had so many pears for you in the past years. Now I will die soon. I only have a short time to live. Please don't kill a dying tree that has done so much for you." "I'm sorry. I have to do so," the man said, "because I need wood to make a chair." Then he began to wave his axe. At that moment, a bird in the old tree shouted at him, "Don't cut it down! Every time you go out and your wife feels lonely, she will come out to the garden and sit under the tree to enjoy its cool shade , and I sing songs to make her happy. We give much joy to your wife when you are away from home." The man didn't listen to the bird and drove it away. Just when he was about to cut the tree, some bees flew out of it and said, "Listen! If you agree not to kill this tree, we will give you nice honey every day. Would you please leave the tree with us?" The man got moved . He said, "You are so kind to the tree, although it has become old. Now I see that I shouldn't cut it down. It has done so much for me and my wife. Let the tree stay here, and let the bird _ its songs here." With these words, the man left. And the old tree lived there to its last day. Which is the most important reason for the man to cut down the tree? | [
"The tree was getting old.",
"The man needed wood to' make a chair.",
"The tree didn't give any shade.",
"The man couldn't get any pears from it."
] | null | D |
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