dataset string | id string | question string | choices list | rationale string | answer string | subject string |
|---|---|---|---|---|---|---|
mmlu_stem | mmlu_stem_22307 | What tastes flavors? | [
"flamingos",
"metals",
"stars",
"bicycles"
] | null | A | |
mmlu_stem | mmlu_stem_17212 | A solar cell turns sunlight into another form of energy. A solar cell is most like what natural structure? | [
"an elephant's ears",
"a plant's leaves",
"a deer's hooves",
"a tree's roots"
] | null | B | |
mmlu_stem | mmlu_stem_13458 | My name is Peter and I'm 12 years old. I don't have a brother or a sister. I am in No.2 Middle School. My parents are Gray and Nancy Wilson. My father is a worker and my mother is a music teacher. My father's parents are David and Jacy Wilson. They don't live with us. They live in the nearby city . David is 63 and Jacy is 61. They come to see us once a month . My mother's parents are Henry and Sara Smith. Henry is 62 and Sara is 58. They are farmers. They have a farm. They grow vegetables and rice . I like to go to see my grandparents. Who has a farm? | [
"Mr. and Mrs. Wilson.",
"Peter's parents.",
"Mr. and Mrs. Smith.",
"Nobody."
] | null | C | |
mmlu_stem | mmlu_stem_2687 | The vast majority of fitness trackers count your steps and are worn around the wrist, but now there's a device that's designed to be worn like a necklace and monitors tiny movements to improve your posture. The Fineck device aims to address neck pain by tracking tiny movement, spotting bad habits and suggesting exercises via an accompanying app. Made from silicone and titanium , Fineck monitors a wearer's movement, balance, posture and movement thanks to sensors inside. The Mountain View California-based firm says that a high percentage of people suffer from neck pain and associated problems, probably caused by more individuals doing office jobs, which generally involve leaning over computer keyboard. The device contains sensors, several different types of instruments to monitor movement, plus a monitor to shake. It connects to an IOS app via Bluetooth so that wearers can see their bad habits and play "neck training" games. The app warns of health risks and records a user's activity to build up a customer personal health description. The necklace shakes to give smart advice, such as reminding wearers to sit up straight. The app also allows users to set goals, like many other wearables do. "Fineck is the first wearable device for your neck that tracks your neck activity and warn you when you are in a bad posture for too long. You can also exercise your neck with Fineck's interactive games." The company writes on Kickstarter. "No matter where you are and what you are doing at office, on the go, or simply just feeling bored, Fineck will bring you enriched exercise experience through motion sensing games and therapies." It also claims that it is "the world's first titanium wearable device". The metal is widely used in fashion stuff that you can wear or carry to match your clothes because it is lightweight, durable and does not tend to cause allergic reactions. It also offers additional features such as shaking to indicate alerts on a user's smartphone, but it is not currently clear whether it can also be used like bands, to count steps, and so on. The Fineck has a battery life of around seven days and takes one hour to charge. It is available to pre-order via Kickstarter from $69(PS44)and is due to ship in March next year. Which of the following statements is true? | [
"The Fineck takes an hour to charge and is available at any time.",
"Movie stars like to wear necklace made of silicone to match their clothes.",
"The device count the steps to help wearers to see their bad habits.",
"Neck-ache is something caused by using computers too much."
] | null | D | |
mmlu_stem | mmlu_stem_11254 | Roll over, sit and fetch aren't commands normally given to a robot, but the smart toy company WowWee has developed a new way of owning a puppy. CHIP (Canine Home Intelligent Pet) is a robotic dog with blue LED eyes and pointy ears and can sit, shake, dance and make all types of dog noises. It also has tracking capabilities to help locate its owner. "The beauty about CHIP is that it has its own thing going on," said Sufer, CTO at WowWee. "It has its own life and own kind of intelligence. Even if you're not around, it's always doing something." CHIP uses wheels to get around and is loaded with sensors that give it a 360-degree view to find its ball. The pup is Bluetooth enabled, which connects to a wristband worn by its owner. The wristband, similar to a watch, displays icons for different commands such as a thumb-up, which allows you to give your pup a digital belly rub. With its owner wearing a smart wristband, it can even follow him around the room. "We worked on CHIP for about five to six months," Davin Sufer, told dailymail.com, "We typically come up with a concept, model and product and get it on shelves within a year." The company plans to start shipping units by next fall, which will allow them to load up the robotic dog with sensors and add many more animated responses per-owner interactivity. The high-tech toy company made its debut in 2004 by releasing the 1.5 foot RoboSapien, which sold millions of units. MiP, which hit shelves last year, is a seven inch tall robot covered in white with black accents. Users can direct it, change its emotions and make it dance to any song on your iPad. It's loud, fast and active. About 15 years ago, a company called ToyQuest developed the first ever electronic robotic dog---Tekno, the Robotic Puppy. The company sold over seven million units in the first season and 40 million more during its original four years of production. Tekno was built with over 160 emotions and instructions, but most importantly offered consumers a quick look into the future. From the passage, we can know _ . | [
"CHIP can be bought in the store now",
"WowWee introduced its first product last year",
"Tekno provided the bright future of the robotic puppy",
"MiP is the first company to develop the robotic puppy"
] | null | C | |
mmlu_stem | mmlu_stem_6612 | "ONE in every 50 Shanghai women has cancer, a total of more than 140,000 women currently living in the city, and cancer statistics are based on citizens with permanent residency ," officials from the Shanghai Center for Disease Control and Prevention said ahead of International Women's Day on Friday. However, they said the city's rate of cancer in women was rising slowly along with its rising number of elderly people. Early screening for breast, colorectal and cervical cancers can help prevent 30 percent of cancer cases. Breast, colorectal, lung, gastric and thyroid cancers are the five most common cancer forms among women, with breast cancer accounting for 16 percent of Shanghai's new cases each year and colorectal cancer 13 percent. Cervical cancer, although only the 12th leading cancer in women in Shanghai, is particularly common among women between 25 and 54 years old. Dr Zheng Ying, director of the center's tumor prevention and control department, said , "breast, colorectal and cervical cancers accounted for 32 percent of female cancers". He added, " However, the three types of cancer can be detected and treated properly through early and regular screening. Our main target of women's cancer prevention education this year is breast cancer, cervical cancer and colorectal cancer."The prevention and control of colorectal cancer will be a new public health project this year with the city government promoting a community-based screening program. Experts say women over 20 should examine their breasts every month and have annual clinical checks after the age of 35. Women over 50 should have mammograms(X) every two years. For cervical cancer, women over 20 should be checked every three years. Women over 50 years old should have annual medical checks. Zheng said anyone with a family history of the three types of cancer should be aware of the need for more frequent examinations and early screening. The center's main target of women's cancer prevention education this year is _ . | [
"breast cancer, lung cancer and colorectal cancer",
"breast cancer, cervical cancer and thyroid cancer",
"breast cancer, cervical cancer and lung cancer",
"breast cancer, cervical cancer and colorectal cancer"
] | null | D | |
mmlu_stem | mmlu_stem_13782 | Man-made satellites have been sent up into space by many countries. These satellites go round the earth and help us to learn more about the earth, the weather and other things. Most countries use these satellites to sent and receive messages. For example, with their help China can send their programs to America, too. We can also use satellites to help us to make telephone calls to foreign countries. Man-made satellites can also help us _ to our friends on the other side of the world. | [
"write down",
"send birthday presents",
"pay visit",
"make telephone calls"
] | null | D | |
mmlu_stem | mmlu_stem_3651 | Scientists Alan M.Goldberg and Thomas Hartung describe recent advances in replacing the use of animals in toxicology testing.Improvements in cell and tissue culture technologies,for example,allow a growing number of tests to be performed on human cells alone.Computer models are becoming increasingly complex and many could one day become more accurate than trials in living animals. Since the late 1990s,Huntingdon Life Sciences--a company that conducts testing of substances on animals conducted by the Environmental Protection Agency and the Food and Drug Administration--has become a proving ground for aggressive strategies by animal-rights militants .At a hearing,a Senate.committee listened to testimony against Huntingdon employees and financial institutions providing services to the company.One experimentation witness at the hearing insisted that any means necessary were justified to spare animals' lives;he has previously accepted the idea of murder to that end. Use of animals in testing and in biomedical research continues to be necessary in many instances and is ethically preferable to experimenting on humans or giving up cures that could save human lives.But for the sake of people and animals alike,the development and acceptance of animal substitutes deserve enthusiastic support. In some instances, substitutes are already thought as good or better than animals,but supervising agencies have yet to catch up.In both the European Union and the U.S.,scientists and companies wanting to use the new alternative tests complain that regulatory standards for proving a drug or chemical to be safe for humans force the continued use of animals.Thus,animal-loving Americans might turn to persuading the EPA and the FDA to speed validation of new methods so that they can be more widely employed.And animal advocates who want to influence business could consider investing in the small biotech's and large pharmaceutical companies that are working to develop alternatives to animals in research. From the passage,we can find _ . | [
"the use of animals in testing has been stopped abruptly",
"animal substitutes are not preferable",
"supervising standards contribute to the continued use of animals in testing",
"only Huntingdon Life Sciences is accused"
] | null | C | |
mmlu_stem | mmlu_stem_11398 | Every human being,no matter what he is doing,gives off body heat.The usual problem is how to get rid of it.But the designers of the Johnstown campus of the University of Pittsburgh set themselves the opposite problem-how to collect body heat.They have designed a collection system which uses not only body heat,but the heat given off by such objects as light bulbs and refrigerators as welt.The system works so well that no fuel is needed to make the campus' six buildings comfortable. Some parts of most modern buildings--theaters and offices as well as classrooms-are more than sufficiently heated by people and lights and sometimes must be air conditioned even in winter.The technique of saving heat and redistributing it is called "heat recovery".A few modem buildings recover heat,but the University's system is the first to recover heat from buildings and reuse it in others. Along the way, Pitt has learned a great deal about some of its producers.The harder a student studies the more heat his body gives off.Male students send out more heat than female students and the larger a student,the more heat he produces.It is tempting to conclude that _ for the Johnstown campus would be a hard-working overweight male genius . The words "the hottest prospect" refer to _ . | [
"the person who suffers most from heat",
"the person who produces most heat",
"the person who uses most heat",
"the person who takes in heat"
] | null | B | |
mmlu_stem | mmlu_stem_20426 | matter is made of what? | [
"united atoms",
"sound",
"feelings",
"bonds of friendship"
] | null | A | |
mmlu_stem | mmlu_stem_6282 | This US competition is for camping related articles in which you share your tips, advice, experience, etc. Closing: When we've received 100 articles -- so you'd better be quick. Prizes: $100,$75,$25 -- all in VISA Gift Cards. How to enter our writing competition In your own words, write an article on a camping topic such as: how to's, reviews, tips and advice, or any topic camping related.The best articles will include useful information about camping, in an interesting and well-written way.Remember that it should be no less than 200 words. Other requirements 1.Fill in all the information required, including your article, on our webpage CampTrip.com and then submit it. 2.You must be 16 years old or over to take part in the competition. 3.You must be a student who is now studying in the US. And what's in it for you? We are giving out a VISA Gift Card for first, second and third best articles.Simply share your experience with others and try to win a VISA cash card.The writing competition is limited to 100 articles which gives you a better chance of writing.So why don't you take up this chance? Who will most probably be interested in the competition? | [
"Teachers.",
"Students.",
"Writers.",
"Parents."
] | null | B | |
mmlu_stem | mmlu_stem_21586 | celestial objects are where in the earth's atmosphere | [
"inside",
"below",
"outside",
"over"
] | null | C | |
mmlu_stem | mmlu_stem_15882 | We live in the computer age. People use computers to do much of their work, such as playing games, listening to music, shopping and so on. But few people know how to take care of them. Please remember the following when you use your computer: 1.Keep your computer in a dry cool room. Too much heat is bad for computers. 2. Do not smoke near your computer. Smoking is also bad for them. 3. Do not drink or eat near computers. A little water and pieces of food in the keyboard are also bad for a computer. 4. Keep your screen clean and do not have it too bright. They are bad for your eyes. Make sure the screen is not too far or too near your eyes when you use a computer. Where should computers be put? | [
"Five.",
"Seven.",
"Thirty-five.",
"Forty."
] | null | C | |
mmlu_stem | mmlu_stem_8717 | Monkeys , face to face DISCOVER magazine once reported on a curious event in the woods : a group of monkeys applied mud to their faces in order to keep away insects , but when they were done they seemed to have lost their ability to recognize each other ---two monkeys that were supposed to be friends even started fighting. "Faces are really important to how monkeys and apes can tell one another apart," explained Michael Alfaro, a biologist at University of California, Los Angeles (UCLA), to the New York -based International Science Times . This is quite different from many other animals , which depend heavily on smells. Since faces play such a crucial part in the social lives of monkeys , could this explain why certain monkey species have such colorful faces while others have simpler, plainer ones ? To test this theory , a group of researchers from UCLA studied 139 monkey species , mainly from Asia and Africa, and analyzed hundreds of headshot photos of those monkeys from their databases. It was found that species that live in larger groups have faces with more complex color patterns than those that live in smaller groups. According to Live Science, researchers believe that this is nature's way of making it easier for monkeys to recognize each other since those living in larger groups have to distinguish between a greater number of faces. This is actually not that hard to understand . Just imagine if there were 10 people standing in front of you, all wearing white clothes. It would be much more difficult to tell them apart than if they wore clothes with colorful patterns. However, if there were only two people that you had to identify, a lack of color wouldn't be much of a problem. Apart from the need to recognize group members , researchers found that geography and environment also affect monkeys' facial colors. Species that live closer to the equator in thick, humid forests were found to have darker faces than those who live in dry areas further away from the equator. This is because darker faces help camouflage the monkeys in the woods so that they go unnoticed by predators . Which of the following statements about monkeys'face patterns is TURE according to the article ? | [
"Larger monkeys have more complex face color patterns.",
"Monkeys with colorful face patterns usually take higher social positions within groups.",
"Monkeys living in smaller groups usually have simpler, plainer face patterns.",
"Colorful face patterns keep monkeys safe from predators."
] | null | C | |
mmlu_stem | mmlu_stem_5852 | "It's this time of year when the weather starts warming up and frogs start breeding - but they haven't been breeding," says John Wilkinson, research and monitoring officer at the Amphibian and Reptile Conservation Trust (ARC). Amphibians are just one of the groups of animals that nature observers fear may have problems reproducing this year, as groundwater levels are even lower now than in the infamously dry summer of 1976, according to the Department for Environment, Food and Rural Affairs (Defra). According to the UK's Centre for Hydrology and Ecology the average rainfall so far this winter has been the lowest since 1972. "If ponds dry up totally," says Mr. Wilkinson, "you could have lots of dead tadpoles." Drier and windier conditions could also make it more difficult for juvenile amphibians to survive their journeys between wet habitats. But Peter Brotherton, the biodiversity manager for Natural England, says that "drought is part of nature's cycle", and, at present, a lot of animals, plants and insects are still in hibernation. This means that the population picture is unclear. "However, when we get extreme events, we get animals dying," he says. "And what is worrying is that normally at this time of year we expect soil to be near saturation after winter." Charlie Kitchin, the RSPB's site manager of the Nene Washes in Cambridgeshire, says the 2,000-acre wetland and grassland area is now struggling following two winters with relatively little winter rain and no flooding. One species that could suffer, he says, is the black-tailed godwit . "There are only 50 breeding pairs in the country, and we have 40 of them, and everything is bone-dry," Mr Kitchin says. But one bad nesting season, he says, is "not the end of the world". "One of the features of flood plains is that they're _ anyway," he adds. "But if they fail to breed another year, the population is likely to dip again." It can be learnt from the text that _ . | [
"groundwater levels this summer are lower than those of 1976",
"the average rainfall this year has been the lowest since 1972",
"windier conditions could also cause some amphibians' death",
"flooding plays no useful role in wetlands and grasslands"
] | null | C | |
mmlu_stem | mmlu_stem_17021 | Three kids have been learning chemistry for only a few months. But they have already begun to challenge a world famous scientist! Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator . They want it to take the place of litmus paper. "We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other." British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world. But when the kids did some experiments in class last winter, they saw that the litmus paper didn't turn very blue with base matter. It's hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out! How? They went to collect over 40 plants in parks, gardens and markets. Then they ground leaves, flowers and stems to get the pigments from them. The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper! "It's our first scientific journey, Huang said, "But it makes me want to try harder." What is widely used as the acid-base indicator now? | [
"red cabbage",
"litmus paper",
"any plant",
"any flower"
] | null | B | |
mmlu_stem | mmlu_stem_5273 | Welcome to the Ambassador Hotel. To make your stay as enjoyable as possible, we hope you can make full use of our facilities . Dining Room Breakfast is served in the dining room from 8 a.m. to 9:30 a.m. The room staff will bring a breakfast tray to your room at any time after 7 a.m. Please fill out a card and hang it outside your door when you go to bed. Lunch: 12:00 a.m. to 2:30 p.m. Dinner: 7:30 p.m. to 9:00 p.m. Room Service This operates 24 hours a day; phone the Reception Desk, and your message will be passed on to the room staff. Telephones To make a phone call, dial 0 for Reception and ask to be connected. We apologize for delays in putting calls through when the staffs are very busy. There are also public telephone boxes near the Reception Desk. Early calls should be booked with Reception. Laundry We have a laundry in the hotel, and will wash, iron and return your clothes within 24 hours. Ask the room staff to collect them. Bar The hotel bar is open from 12 a.m. to 2 p.m. and 7 p.m. to 1 a.m. What should you do when you come back to the hotel to make an important call and see a lot of people around the Reception Desk? | [
"Go to your room and phone from there.",
"Ask at the Reception Desk.",
"Go to the public telephone boxes.",
"Go out again and look for a private phone."
] | null | C | |
mmlu_stem | mmlu_stem_21660 | When a person expires they | [
"come back alive",
"rejuvenate",
"decompose",
"rejoice"
] | null | C | |
mmlu_stem | mmlu_stem_9175 | Qian Xuesen is one of the pioneers of China's space science. As a world-famous expert on aerospace rockets and aerodynamics, he obtained great achievements in the areas of applied mechanics, engineering cybernetics and system engineering and made distinguished contributions to the foundation and development of Chinese aerospace undertaking . He graduated from Shanghai Jiaotong University in 1934, and Qian Xuesen went to the United States to study in MIT, Massachusetts Institute of Technology, one year later. After receiving master's degree in MIT, he went to study in California Institute of Technology and received PhD degrees in both aerospace and mathematics. In 1955, six years after the founding of People's Republic of China, Qian Xuesen returned to his motherland. His return brought China the hope of developing space science and its own missiles. In 1956, Qian Xuesen put forward "Proposal on the Development of China's Aviation Industry for National Defense". With the support from Zhou Enlai, the premier, and marshal Nie Rongzheng, Qian Xuesen began to prepare for the establishment of China's first missile and rocket research and development structure, the Fifth Research Institute of State Ministry of Defense. Henceforth , he has long been in charge of the chief technological research and development of China's missile, rocket and spacecraft. Due to research and development led by Qian Xuesen, China successfully exploded its first atom bomb in 1964. Later, China launched its first man-made satellite, Dong Fang Hong I, to the earth orbit on April 24, 1970, becoming the fifth country in the world to independently launch satellite following the former Union of Soviet Socialist Republics, the USA, France and Japan. The satellite floated around the earth, blaring the song Dong Fang Hong, which has the same name as the satellite. As a _ leading the development of China's aerospace science and technology, Qian Xuesen also provided chances for young scientists. Wang Yongzhi, former chief designer of China's manned-space project, has benefited a lot from Qian Xuesen. "He suggested that rocket of the second generation should be developed by our second generation scientists. This suggestion gave us chances to be general designers." Recalling the experience working with Qian Xuesen, Sun Jiadong, general designer of China's lunar orbiter project, is very grateful. "He put great expectation on us and trusted us a lot. Whenever we made mistakes, he seldom blamed us, but helped us to find out the reason so we could avoid it in the future." Honored as Father of China's Missile and King of Rockets, Qian Xuesen never stopped his work on scientific research after he retired. He said he had no time to review the past, but looked forward to the future. According to the passage, which of the following about Qian Xuesen is NOT true? | [
"In 1956, he made good preparations for the Fifth Research Institute of State Ministry of Defence.",
"He made outstanding contributions to the establishment and development of Chinese aerospace undertaking.",
"He returned to China, bringing China the hope of developing space science and its own missiles.",
"H... | null | A | |
mmlu_stem | mmlu_stem_12994 | After spending years searching for a planet with life, scientists may have found one. In September 2010, a team of US scientists discovered a planet called Gliese 581g. It has a surface temperature neither too hot nor too cold for liquid water. Scientists think there is a chance that the planet could have life. The planet Gliese 581g goes around a star called Gliese 581, which is about 20 light-years from Earth. That is about 194 trillion kilometres -500 million times farther away from us than the moon. A spacecraft traveling at a one-tenth of the speed of light would reach Gliese 581g within about 220 years. A human can't live that long, but robotic explorers could make the job easier. However, our fastest spacec raft don't come anywhere near that one-tenth light-speed mark. At present, scientists don't know what the surface might be like on Gliese 581g. What they know is that the planet is at the right distance from its star to have liquid water. It's also at the right distance to have an atmosphere that could protect the water if it is on the surface. Although spacecraft won't be getting there anytime soon, one way to look for life on Gliese 581g is to turn our radio telescopes towards the planet and search for radiation . By studying the radiation, scientists would find out about the chemicals around the planet and discover if Gliese 581g has an atmosphere. If it has one, studying the atmosphere would give us a good idea whether the planet has life or not. But it'll probably be many years before we can do this properly. People have been arguing about whether there is alien life on Gliese 581g. Any discussion about alien life is just guessing at this point, according to its discoverers. Which of the following is the best title for the passage above? | [
"Gliese 581g, a Likely Living Planet",
"Gliese 581, a Likely Living Planet",
"Gliese 581g and Its Star",
"Gliese 581g and Radiation"
] | null | A | |
mmlu_stem | mmlu_stem_16986 | I had hidden the long black bag in the garage for the past two days. Tonight, in the dark, I would finally take it away. If everything went OK, it would be done by morning. But I had to be sure no one, not even my wife, saw me. It was more difficult to get away from the party than I expected. I said that the children were tired and needed to get to bed. It was partly true. But the main reason for leaving was that I wanted to complete my plan. First I had to get the kids to sleep. That was never easy at any time and tonight it was even more difficult. The eldest one wanted to know why we left the party early. I told him 10:30 pm was not early. As usual, I read them a bed time story, but I had to stop myself reading too quickly or _ would learn my secret. Silence finally came, and feeling like a thief in the night, I went out of the house and into the garage. Taking one end, I dragged the bag out from its hiding place and took it into the garden. I was worried that my neighbours might see me and call the police. It was already eleven o'clock. By the light of the moon I started working, trying to make as little noise as possible. And that was not easy with a saw and a hammer. After much effort, my work was finally completed. I looked down at my watch. It was exactly 4:00 am. Then I went inside to have a shower and get a few hours of sleep. It wouldn't be long now before the kids would rush into my room and wake me up to tell me about the new tree-house Father Christmas had brought them this year. How long did the man spend completing his work? | [
"Three hours.",
"Four hours.",
"Five hours.",
"Six hours."
] | null | C | |
mmlu_stem | mmlu_stem_17659 | Which is the most likely response of a human to an increase in temperature? | [
"increasing the amount of perspiration",
"increasing waste elimination from the bladder",
"a reduction in the desire for liquids",
"a contraction in blood vessels in the skin"
] | null | A | |
mmlu_stem | mmlu_stem_2680 | Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all? To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That's why dry deserts everywhere are almost not covered by trees or grass. Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil found between the _ cracks of the stones to grow in. Another thing plants must have before they can grow is food. What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won't. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no food for plants. According to the passage, plants need_things to grow well. | [
"two",
"three",
"four",
"five"
] | null | C | |
mmlu_stem | mmlu_stem_2934 | Strawberry fields dotted with hunched-over workers picking and packaging, then pushing the delicate red fruit to waiting trucks -- it is a typical winter scene embedded in the patchwork of homes and farms that make up eastern Hillsborough County. That scene is changing, though, as the labor pool shrinks and technology comes knocking. Wish Farms owner Gary Wishnatzki and his engineer partner Bob Pitzer are banking on technology. As strawberry season wrapped up in February, their driverless strawberry-picking machine drove into the fields for some test runs. The results were impressive and enlightening , Wishnatzki said. For some three years now, farmers have been forced to abandon millions of dollars worth of strawberries in fields, mostly in Hillsborough and Manatee counties, because they lacked laborers, industry experts say. The problem has been just as serious in California, Arizona and other farm communities. The reasons for the shrinking worker pool are numerous. Migrant workers who have picked the fields for years are aging. Young adults in migrant families already in the United States are getting better educations and have more choices these days, including the construction industry, which again is on the upswing. Stricter security is allowing fewer undocumented workers to cross the border from Mexico. And Mexicans are having much smaller families now -- just over two children per family, compared with 7.3 per family in 1960, according to a Pew Hispanic Center report released in 2012. And since Mexico's economy bounced back faster than that of the U.S., more Mexicans have been able to find work closer to home, according to the study. "We came up with a concept we perceive as a necessity," Wishnatzki said. "The labor pool has been shrinking for over 10 years now. It has been pretty harmful." So in 2012, he and Pitzer formed their partnership, Harvest CROO Robotics, to develop a mechanical picker. The Harvest CROO design has multiple picking heads that will move across a field, picking 25 acres over a three-day period, the typical time for picking fruit as it ripens. It has a "vision system" to distinguish between red and green strawberries and is able to get under the leaves to find and pick the ripe berries. Picking strawberries is nothing like using a combine on a corn field, coming through and thrashing down the plants. Strawberries are delicate and ripen in various intervals, which Harvest CROO is taking into account in developing its machine. A strawberry-picking machine will never completely replace the need for human labor in the fields, Wishnatzki said, but if the machines can supplement labor enough to keep the industry profitable, he and Pitzer will have met their goal. The "vision system" is designed to _ . | [
"take pictures",
"locate leaves",
"find the ripe berries",
"help the color-blind"
] | null | C | |
mmlu_stem | mmlu_stem_583 | Data in tables may also be presented in graphs. Which type of data would best be displayed on a circle graph? | [
"the distance of the planets from the sun",
"the depths of the major oceans on Earth",
"the amount of rainfall each day for a month",
"the percent of various materials in solid waste"
] | null | D | |
mmlu_stem | mmlu_stem_4566 | "I don't want to buy a traditional yearbook. I can keep and share memories of my high school on the Internet."You may often hear this from many American high school students now. Instead of buying a book, more and more students choose to sign up at My Yearbook.com. My Yearbook.com was created by two teenagers, Catherine Cook and her brother, 18-year-old David Cook, in 2005. They built it up to about 950,000 members in a year. The site allows people to create a profile with separate sections for high school, college, graduate school and professional life. Students who sign up are linked to other people at their school. Acting as their own editors, they can select friends from their classmates. The site also connects students through clubs and spprts pages. Like other so-called social-networking sites, it allows members to show photos and post messages. Students can do lots of things that old-fashioned yearbooks can't offer, including hearing music and watching videos. Catherine and David developed the idea because they thought that their own yearbooks weren't good enough and were too expensive. "We just think yearbooks are obsolete," said Catherine Cook, 16."If you think about it, all you're going to do with it is put it on the shelf and never really look at it." Many American teenagers want different things out of their yearbooks than their parents did. They like the idea of creating an online yearbook. That is the reason why My Yearbook.com is becoming more and more popular. Some people, however, still wonder if this free website can ever truly replace the traditional printed book of high-school memories-even for the generation that have grown up with the Internet. Some students would like to be the users of the My Yearbook.com as well as buy a traditional yearbook. The"war" between the tradition and the new technology will never end. Everyone is free to choose what he prefers and even has both. According to the author, _ . | [
"the traditional yearbooks are out of date",
"My Yearbook.com can truly replace the printed yearbooks",
"teenagers should all use the online yearbooks",
"both traditional yearbook and My Yearbook.com are OK"
] | null | D | |
mmlu_stem | mmlu_stem_12208 | Mary and Her Friends Mary has some friends. They are Betty, Peter, Alice and Mike. Mary is the oldest of the five. Betty is thirteen years old. She is younger than Mary and older than Peter. Alice is nine and Mike is seven. Betty and Peter are good runners . But Peter runs faster. Mary and Betty like to play basketball. Mary plays better than Betty. Alice sings best of them. Mary and Betty study in a middle school. Peter, Alice and Mike study in a primary school. They all work hard at school. But Betty works hardest. Her handwriting is good, too. Peter runs _ than Betty. | [
"faster",
"slow",
"faster",
"the fastest"
] | null | C | |
mmlu_stem | mmlu_stem_20076 | The moon is always illustrated in movies and drawings as being very rough and bumpy due to craters, but there are many areas that are | [
"smooth",
"Earth",
"rainbow",
"edible"
] | null | A | |
mmlu_stem | mmlu_stem_17696 | What is the process called when an acid and a base combine to produce water and salt? | [
"neutralization",
"dilution",
"titration",
"physical reaction"
] | null | A | |
mmlu_stem | mmlu_stem_3179 | There is nothing in the Hippocratic Oath that tells doctors what to do when they make a mistake with a patient. Nor is there much on this subject in medical school curriculums or in training programs. _ Much was made of the Institute of Medicine's 1999 report that 44,000 to 98,000 people die each year in hospitals from preventable medical errors, many of them made by doctors. The report stated much first-hand information to address the problem, but there was little discussion about how doctors, when they have made mistakes, should deal with their patients, Everyone assumes that the ever-present threat of accusation has made doctors more anxious about admitting error, and no doubt it has, But doctors have always been tight-lipped about their mistakes, in part to preserve an illusion(,) of medical omnipotence Studies suggest that patients are less likely to accuse doctors when they apologize for mistakes, and many hospitals now encourage their physicians to admit their errors. According to an supportive group called The Sorry Works! Coalition, 16 states have already passed laws giving doctors legal immunity for their apologies to patients. Of course, there are plenty of doctors with a nice bedside manner who can get away with bad treatment. How else to explain patients who often line up in court to support doctors accused of malpractice ? The surprising truth is that many patients have a hard time knowing whether they are really getting good medical care. Because so many diseases change randomly over time, patients sometimes spontaneously improve despite improper treatment. On the other hand, a patient who receives exemplary medical care may fare badly simply because the illness is hard to treat. In other words, doctors are often praised or blamed, when the outcome is in fact a chance event. Many, perhaps even most, medical errors probably have little ill effect and go unnoticed by patients. Many lawyers would disagree, but doctors ought to let their patients know when they've made a mistake; it humanizes them and builds trust. According to the passage, which of the following is TRUE? | [
"The doctor made the mistake deliberately so they do not apologize.",
"Doctors never tell the patient they have made a mistake.",
"The patients won't forgive the doctor if he make the mistake.",
"The patient will usually forgive the doctor when the mistake are not intentional."
] | null | D | |
mmlu_stem | mmlu_stem_14011 | Tigers are strong and dangerous animals. But now they are in danger. In the past, there were eight kinds of tigers in the world. But during the 20th century, only five were left. The number of Siberian tigers was about 300, but now it is less than 22. They're in danger of dying out. If the government does nothing, we won't be able to see them in ten to twenty years. In order to stop people from hunting and killing wild tigers, and in order to make wild tigers more, the World Wildlife Fund has started a program recently . China and twelve other countries joined it. However, it's not enough. Remember that nature is a food chain . If we hurt and kill too many wild deer and pigs, wild tigers will die out because of hunger . So the most important thing is to save the animals that tigers eat. In order to protect the wild tigers, we need call on more people to stop eating, hunting and killing wild animals. ,. The number of the wild Siberian tigers reduced about _ . | [
"5%",
"22",
"93%",
"30%"
] | null | C | |
mmlu_stem | mmlu_stem_18376 | Which of the following materials would best slow the transfer of heat? | [
"aluminum",
"copper",
"glass",
"wood"
] | null | D | |
mmlu_stem | mmlu_stem_4759 | Many people consider their pets members of the family and are very sad when they die, but what if you could clone your dog, cat or bird? A scientist in New Orleans, who has proved his ability to clone other animals, is now offering the possibility to pet owners here in Wisconsin. Scientists have not been able to clone dogs, cats or other pets, but if and when the time comes, several companies will be ready and able to do the job. The question is: Are you ready to clone your pet? Brett Reggio is betting on it.He is working on his Ph. D at Louisian State University. He's successfully cloned a goat five times and wants to try the process on family pets. So he started a business called Lazaron. "What Lazaron provides is the first step in the cloning process. "He said."It's for curing and storing the fiberglass cells that will be used for cloning." "Your first reaction is yeah! I think I'd like that." said Donna Schacht, a pet owner. "I don't believe you can ever replace a special love," pet owner Paulette Callattion said. Most pet owners will tell you freezing your pet's DNA in hopes of one day cloning it is a personal decision. Scientists say that cloning your own pet doesn't mean that the offspring will have the same intelligence, temperament or other qualities that your pet has. From the passage we know that scientists have _ . | [
"tried to clone animals",
"cloned many kinds of animals",
"been able to clone pets for people",
"once cloned goats successfully"
] | null | D | |
mmlu_stem | mmlu_stem_818 | The depth of Lake Superior can be measured by sending sound waves to the bottom and measuring the period of time it takes for the reflected sound waves to return to the surface. Which of the following would indicate a shallow depth? | [
"There is no return signal.",
"The return signal is very weak.",
"The return signal appears almost instantaneously.",
"The return signal comes back at a different speed"
] | null | C | |
mmlu_stem | mmlu_stem_10460 | Homestay UK/Great Britain Here you will find a selection of homestay hosts and host families in the UK. If you want to learn more about the British host family of your choice, please click on information at www. Homestaybooking. Com. You will then see a personal introduction of the UK homestay host. If you don't want to search yourself, just register for free and receive our matching recommendations. Chika and Tara from London, the United Kingdom Information about the homestay host Chika is 28 years old. She is away from home most of the time. Tara is 18 years old. She is at home every day. They both speak English. Chika and Tara's guests can stay for at least 5 nights and up to a maximum of 365 nights. Chika and Tara have no children living at home. It is a non-smoking residence . No pets live in this household. Information about the homestay accommodation The accommodation is in London. The name of the neighborhood is Greenwich. The distance to the city center is 1.6km. The next access point to public transport is at 15 m distance. Three guests can stay in Tara and Chika's house at the same time. The following accommodation is generally available: Single room with shared use of the family bathroom *Size: 12.0 m2 *Facilities: desk, Internet access, mirror, hairdryer and wardrobe *Price per night per person: PS20.00 per night(one single) Twin room with shared use of the family bathroom *Size: 15.0 m2 *Facilities: TV, desk, Internet access, mirror, hairdryer and wordrobe *Price per night per person: PS20.00 per night(one guest) PS17.00 per night(two guests) The room charge includes the following services: Internet access, regular room cleaning, breakfast, free use of the washing machine. Additional available service at an extra charge: Pick-up service(PS60.00 one-way); Lunch(PS6.00 per person per day); Dinner(PS6.00 per person per night) Vegetarian meals are available. If Mary chooses a twin room and pick-up service(two-way), how much should she pay per day? | [
"PS140.",
"PS137.",
"PS80.",
"PS77"
] | null | A | |
mmlu_stem | mmlu_stem_12832 | I am Lin Feng. This is a picture of my family: my grandfather, my grandmother, my father, my mother, my sister and I. My grandparents are in Beijing now and we are in Zhejiang. My mother is a teacher and my father is a doctor. My sister and I are middle school students. My sister is in Class 1,Grade 8 and I am in Class2, Grade 7. I have a good friend here. Her name is Zhang Ning. We are in the same class. There are _ people(;) in Lin Feng's family. | [
"three",
"four",
"five",
"six"
] | null | D | |
mmlu_stem | mmlu_stem_482 | Which pair of elements has the most similar properties? | [
"Li and B",
"I and Ca",
"K and He",
"N and P"
] | null | D | |
mmlu_stem | mmlu_stem_15119 | Early to bed, early to rise, makes a man healthy, wealthy and wise. This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the morning. Then we shall be healthy. We shall also be rich (wealthy) and clever (wise). This is true. The body must have enough sleep to be healthy. Children of young age should have ten hours' sleep every night. Children who do not have enough sleep cannot 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 helps the blood to move 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! If we get up early and go to bed early , we'll _ . | [
"have enough exercise",
"be healthy",
"think better",
"have strong blood"
] | null | B | |
mmlu_stem | mmlu_stem_16057 | Jeff likes fish very much. He buys some fish and takes it home. When(......) his wife sees the fish, she says to herself,"Good! Now I ask my friends to have lunch, and we can have the fish."They like eating fish very much. When Jeff comes home in the evening, he can't find the fish and his wife says,"Oh, your cat eats it."And she gives Jeff some bread for supper. Jeff is not very happy. He takes the cat and his wife to the shop nearby . Then he says to his wife,"My cat is one kilo and the fish is one kilo, too. The fish is here. But where is my cat?" Jeff's wife tells Jeff _ . | [
"she eats the fish",
"the cat eats the fish",
"her friends eat the fish",
"the man in the shop eats the fish"
] | null | B | |
mmlu_stem | mmlu_stem_7592 | Item 78431 The Video Camera Pen $129. 95 ;Available for Immediate Shipment; Order by Phone :1-800-321-1484 This is the pen that has a built-in video camera, capturing(,)videos or still images with a click of its button. Ideal for use while secured in a pocket, it can capture up to five hours of video. Its battery provides up to two hours of power before requiring a recharge. Item 78098 The Wristwatch Camcorder $149. 95; Available for 3-day Shipment; Order by Phone :1-800-321-1484 This is the men's watch with an unnoticeable camera located at the two-o'clock position, yet the watch's hands never make it covered. So you'll be always ready to capture a famous person or a pet's ridiculous actions. The camera's rechargeable battery provides up to two hours of use from a four-hour charge. Item 77918 The only 55 Inch Widescreen Personal Movie Theater $ 249. 95 ;Available for Immediate Shipment; Order by Phone:l-800-321-1484 This is the only personal media viewer that provides a private viewing experience just like watching a widescreen 55 inch television from 10 meters away. It connects to a video iPod, iPhone, portable DVD player with two AA batteries providing up to six hours of continuous operation. Item 77281 The Digital Phone Album Watch $ 99. 95 ;Available for Immediate Shipment; Order by Phone :1-800-321-1484 This is the watch that vividly displays 120 of your favorite digital photographs. You can download digital photographs to the watch. The watch can be viewed in the Photo Album mode or digital mode( time and date view). A six-hour charge provides up to 10 days of use. Which of the following is TRUE according to the passage? | [
"In fact, Item 78098 cannot tell time.",
"Item 77918 works as a DVD player.",
"In a way, Item 77281 is user-friendly",
"All the items include rechargeable batteries."
] | null | C | |
mmlu_stem | mmlu_stem_3666 | No one is glad to hear that his body has to be cut open by a surgeon and part of it taken out. Today, however, we needn't worry about feeling pain during the operation. The sick person falls into a kind of sleep, and when he awakes, the operation is finished. But these happy conditions are fairly new. It is not many years since a man who had to have operation felt all its pain. Long ago, operation had usually to be done while the sick man could feel everything. The sick man had to be held down on a table by force while the doctors did their best for him. He could feel all the pain if his leg or arm was being cut off, and his fearful cries filled the room and the hearts of those who watched. Soon after 1770, Josept Priestley discovered a gas which is now called "laughing gas".Laughing gas became known in America.Young men and women went to parties to try it. Most of them spent their time laughing,but one man at a party,Horace Wells,noticed that people didn't seem to feel pain when they were using this gas.He decided to make an experiment on himself.He asked a friend to help him. Wells took some of the gas,and his friend pulled out one of Well's teeth.Wells felt no pain at all. As he didn't know enough about laughing gas, he gave a man less gas than he should have. The man cried out with pain when his tooth was being pulled out. Wells tried again,but this time he gave too much of the gas,and the man died.Wells never forgot this terrible event. If a man took less laughing gas than he should have when an operation went on he _ . | [
"felt nothing",
"felt very comfortable",
"still felt pain",
"would die"
] | null | C | |
mmlu_stem | mmlu_stem_21576 | he sun rising and setting causes cycles of | [
"evolution",
"available luminance",
"dancing",
"cooking"
] | null | B | |
mmlu_stem | mmlu_stem_11518 | Since ancient times, people have known about its ability to reduce pain and high body temperature. More than 2000 years ago, the Greek doctor Hippocrates advised his patients to chew on the bark and leaves of the willow. The tree contains a chemical called salicin . From salicin, researchers in the 1800s discovered how to make salicylic acid . And in 1897, a chemist named Felix Hoffmann at Friedrich Bayer and Company in Germany created acetyl salicylic acid. Later it became the active substance in a new medicine that Bayer called aspirin. The "a" came from acetyl. The "spir" came from the spirea plant, which also produces salicin. And the "in" Well, that is a common way to end medicine names. In 1982, a British scientist shared the Nobel Prize in Medicine in part for discovering how aspirin works. Sir John Vane found that aspirin blocks the body from making natural substances called prostaglandins .Prostaglandins have several effects on the body. Some cause pain and the expansion, or swelling( ; ), of damaged tissue. Others protect the lining of the stomach and small intestine. Prostaglandins also make the heart, kidneys and blood vessels work well. But there is a problem. Aspirin works against all prostaglandins, good and bad. Scientists learned how aspirin interferes with an enzyme . One form of this enzyme makes the prostaglandin that causes pain and swelling. Another form of the enzyme creates a protective effect. So aspirin can reduce pain and swelling in damaged tissues. But it can also harm the inside of the stomach and small intestine . What can we know about Prostaglandin according to the passage? | [
"It results from pain.",
"It prevents the lining of the stomach and small intestine.",
"It causes blood vessels to work wrongly.",
"It is sometimes good but sometimes bad."
] | null | D | |
mmlu_stem | mmlu_stem_19045 | If an object undergoes chemical change then that object will have new chemical properties, such as | [
"a drink with water in it",
"a toilet with bleach in it",
"a soda with lime in it",
"a sink with hair in it"
] | null | C | |
mmlu_stem | mmlu_stem_16684 | If we find a bird nest , we will have a good place of watching and knowing about birds. Birds sit on eggs and take care of their babies from April to June. Because the baby birds are too young to leave the nest, parents often go to look for food and come back in several minutes. So it is good to watch birds. When we watch birds, we'd better hide ourselves in a close place to the nest, and it's better to use binoculars . But how do we make a bird nest? A good bird nest must be very fine, strong, thick and comfortable. If you want to make one, please follow these: a) Each nest must have six boards for its cover and floor, for its left and right sides, and for its front and back sides. Don't make the boards too slippery . b) Dig a small hole in the front of the nest as a "door". The "door" is big enough so birds can fly in or out easily. c) Make sure the rainwater can't go into the nest. d) One piece of the board should be easy to open. e) Don't forget to colour the nest. When we're watching birds, we have to _ . | [
"look after the birds more often",
"use the binoculars to catch the birds",
"hide ourselves to make the birds do everything as usual",
"catch the birds at last"
] | null | C | |
mmlu_stem | mmlu_stem_16901 | I like to get up late, so my ideal school starts at 9: 00 a. m. It finishes at 3: 00 p. m. So we can do lots of sports after school. In my ideal school, there is a big dining hall. We have an hour for lunch. We can listen to music in the hall. We can have maths every day because I think maths is very interesting. The classes are very small. There are 15 students in each class. We can have a big library with a lot of _ books. We can also have a swimming pool. After school, we only have half an hour of homework every day. Every month, we can go on a school trip to a museum or a theater. How many hours for lessons are there in my ideal school? | [
"Three hours.",
"Four hours.",
"Five hours.",
"Six hours."
] | null | D | |
mmlu_stem | mmlu_stem_22015 | matter in the liquid phase has what shape? | [
"circle",
"adaptable",
"triangle",
"square"
] | null | B | |
mmlu_stem | mmlu_stem_7629 | If you thought taking vitamins would reduce the risk of lung cancer, think again. Researchers who studied 77,721 people said on Friday that people who took too much vitamin E,especially smokers,had a small but higher risk of developing lung cancer. They tracked the subjects'use of multi-vitamins,vitamin C and vitamin E to see if it offered protection from lung cancer.But they found that none of the vitamins was tied to a reduced risk. "If you could find some sort of magic pill--a pill you could take once a day to decrease your risk--that would be wonderful.But unfortunately.we didn't find that in our study,"lead researcher Christopher Slatore,of the University of Washington Seattle,said. The subjects of the study were followed for four years,and 521 developed lung cancer,the majority of them smokers or former smokers,Slatore's team reported in the American Journal of Respiratory and Critical Care Medicine. Among those in the study who developed lung cancer, the researchers saw a small increased risk related with vitamin E supplements in addition to the expected connections to smoking,family history and age. This added up to a 28 percent increased risk of developing lung cancer for those taking 400 mg of vitamin E supplements daily for 10 years,the researchers said. "For people--especially smokers--I suggest that they not take vitamin E(as a supplement) unless they have a very strong reason to take it." Slatore said. The idea that vitamin supplements are healthful,or at least not harmful.comes from the desire of many people to match the benefits of a healthful diet with a convenient pill,Tim Byers of the University of Colorado School of Medicine.wrote in an essay. What is the main idea of the passage? | [
"Taking vitamins would reduce the risk of lung cancer.",
"Vitamins are no guard against lung cancer.",
"Vitamin supplements are convenient and magic.",
"Vitamins ale harmful,or at least not healthful."
] | null | B | |
mmlu_stem | mmlu_stem_12865 | A rich man was riding along the road and saw an old man digging in his garden. On the ground lay a young tree, ready to be planted. The rich man called out to the old man. "What kind of tree are you planting there, my good man?" "This is a fig tree, sir." He said. "A fig tree?" The rich man was very surprised. "Why, how old are you, may I ask?" "I am ninety years old this year." "What ?" cried the man. "You are ninety years old. You are planting a very young tree now and it will take years to give fruit. You certainly don't hope to live long enough to get any fruit from this tree." The old man looked around the garden. Then he said with a smile, "Tell me , sir. Did you eat figs when you were a boy?" "Sure , why do you ask this question?" the man asked. "Then tell me this,"he said. "Who planted the fig tree?" "Why-why? I don't know." "You see, sir. Our forefather planted trees for us to enjoy and I am doing the same for the people after me." The rich man was quiet and said, "You are right, my good man. We should do something for the people after us. Thank you very much." The rich man rode away. The rich man didn't eat figs when he was a boy, did he ? | [
"No, he did.",
"No, he didn't.",
"Yes, he did.",
"We don't know."
] | null | C | |
mmlu_stem | mmlu_stem_3431 | Do your spirits soar on a sunny day? Do you relax at the sound of flowing water? Some scientists suggest that these contacts with nature are good for your health. In one study, hospital patients with a view of trees had shorter hospital stays and less need for pain medications. Another study indicated that prisoners with a view of the outdoors had fewer doctor visits. "Why do we desire nature? Maybe we're programmed to need it, since our ancestors' survival was so dependent on their connection with nature," suggests biologist E.O. Wilson. Want to find out if contact with nature improves your outlook on life? Try a few of these ideas. Hang out a bird feeder and watch the birds that visit it. Sit down in the backyard or a nearby park. Close your eyes. What do you hear? Birds singing? The wind in the trees? Crickets chirping? Find an anthill. Sit down and watch the ants work. Take a walk right after a rainstorm. What looks different? Smells different? Go barefoot on a sandy beach. Open the curtains and the window, if the weather allows it. On a windy day, watch the trees. Go to a creek, river or park fountain. Listen to the sound of water in motion. Camp out in the backyard or at a nearby state park. Use a tent or sleep on the ground. Find a wide-open space to study the stars. Learn about the different constellations . Raise a garden. Or plant some seeds in a flowerpot. Go hiking with your family. Talk about all of the colors you see in nature. Take a camera and capture your nature experience. What is the best title of the passage? | [
"Go hiking with your family.",
"Let nature nurture you.",
"Visit your doctor less.",
"Watch the trees more often."
] | null | B | |
mmlu_stem | mmlu_stem_7811 | Thunder was coming when Reginald Eppes woke up at five in the morning. He checked the weather forecast. A violent storm was coming ,but it sounded like his small town wouldn't be hit too hard. But Eppes, a firefighter, had clearly known the power of these huge storms from experiences. "Do you know where the flashlights are?" he asked his wife. Danielle. Just then, thunder was all-around them. The moment he turned the flashlight on. The house lights went off. A second later, the kitchen windows were broken. Eppes and Danielle ran to their boys who were still sleeping in their bedroom. "Get up, get up, R.J.! " Eppes shouted, waving his flashlight. The sleepy boy moved to the edge of the bed. Eppes held out his arms and ordered his son to jump. He was too late. The roof was torn down. R.J. was buried ,under the pieces. "I've lost him," Eppes thought. Quickly, he hurried to Joel to shield him. Glass, wood, and plaster ( ) hit them. Then something huge, heavy-maybe the washing machine-knocked into him. He hurt his arms, but he still held the flashlight in one hand. After a long period, the wind began to die down. Eppes found himself standing in the ruins of his home. Darkness lay all about him. Then he thought he saw a shape moving straight toward him. It was R.J., guided home by the light of his father's flashlight. At the hospital later, R.J. described what had happened to him. "I rushed out when the wall started moving I was scared. My mom and dad were gone. Pieces of glass hit my back, and something hit my neck really hard. " R.J. had been raised up into the air by the wind and dropped back to the ground. Amazingly, R.J. was not hurt badly. Of all his family, Eppes was hurt most seriously. Which of the following is TRUE according to the passage? | [
"Eppes was still sleeping when the storm happened.",
"R.J. was buried in the ruins before he could get out of his bed.",
"Eppes was buried in the ruins when the wind died down",
"R.J. found his father with the help of his mother."
] | null | B | |
mmlu_stem | mmlu_stem_21282 | If a plant is moved from a basement to a field | [
"it will need darkness",
"it will be too dark",
"it will receive nutriment",
"it will now suffocate"
] | null | C | |
mmlu_stem | mmlu_stem_11123 | Easter is still a great day for worship, randy in baskets and running around the yard finding eggs, but every year it gets quite a bit worse for bunnies. And no, not because the kids like to pull their ears. The _ is climate change, and some researchers found that rising temperatures arc having harmful effects on at least five species of rabbit in the US. Take the Lower Keys March rabbit, for instance. An endangered species that lives in the Lower Florida Keys, this species of cottontail is a great swimmer -- it lives on the islands! -- but it is already severely affected by development and now by rising levels. According to the Center for Biological Diversity, an ocean level rise of only 0. 6 meters will send these guys jumping to higher ground and a 0.9-meter rise would wipe out their habitat completely. The snowshoe hare, on the other hand, has a color issue. Most of these rabbits change their fur color from white in the wintertime to brown in the summer, each designed to give them better cover from predators . As the number of days with snow decreases all across the country, however, more and more bunnies arc being left in white fur during brown dirt days of both fall and spring, making them an easier mark for predators. Researchers know that the color change is controlled by the number of hours of sunlight, but whether the rabbit will be able to adapt quick enough to survive is a big question. The National Wildlife Federation has reported that hunters have noticed their numbers are already markedly down. American pikas or rock rabbits, a relative of rabbits and hares, might be the firs' of these species to go extinct due to climate change. About 7-8 inches long, pikas live high in the cool, damp mountains west of the Rocky Mountains. As global temperatures rise, they would naturally migrate to higher ground -- but they already occupy the mountaintops. They can't go any higher. The National Wildlife Federation reports that they might not be able to stand the new temperatures as their habitat beats up. The volcano rabbit has the same problem. These rabbits live on the slopes of volcanoes in Mexico, and recent studies have shown that the lower range of their habitat has already shifted upward about 700 meters, but there are not suitable plants for them to move higher, so they are stuck in the middle. Scientists are concerned about their populations. Native to the US, pygmy rabbits weigh less than 1 pound and live in the American West. They are believed to be the smallest rabbits in the world. Their habitats have been destroyed by development. Several populations, such as the Columbia Basin pygmy, almost went extinct and were saved by zoo breeding programs. Pygmy rabbits also rely on winter cover by digging tunnels through the snow to escape predators, but lesser snowfall is leaving them exposed. All of this gives new meaning to dressing up in a giant bunny costume this Easter. Which best describes the writer's tone in the postage? | [
"Approving.",
"Concerned.",
"Enthusiastic.",
"Doubtful."
] | null | B | |
mmlu_stem | mmlu_stem_842 | Which soil component has the least capacity for holding water? | [
"silt",
"clay",
"sand",
"humus"
] | null | C | |
mmlu_stem | mmlu_stem_2887 | Some trees can survive a long time without water. Think of trees that grow in the desert. But other trees may need more moisture than they can get from rainfall or from the air . Trees and other plants can look thirsty. Leaves can become weak and hang downward. They can also turn yellow. Yellowing can be a sign of too much water. But it can also be a warning sign of too little water. With a newly planted tree, the roots have not yet spread out from the root ball. The root ball can become dry faster than the dirt around it. So put water on the area of the root ball and the surrounding soil until the roots become established. Once a tree is well established, water deeply instead of watering often. The amount of water needed depends on the tree and the soil. Clay soils hold water for longer periods while sandy soil holds less water. During the hottest season, a deep watering may satisfy a tree for anywhere from ten days to four weeks. Ted Swiecki is a plant scientist . He says people should not water established trees at the base of the trunk . This can harm the tree. Too much water in the soil at the base of a tree can lead to the growth of fungi . If the area is too wet, harmful organisms have a better chance to invade the tree and cause disease. Mr. Swiecki says this is true especially in Mediterranean and semi-dry climates. Many trees in these climates have adapted to having a dry area near their base during the hottest season. He said, "Water displaces (,)air in the soil. And roots are aerobic ; they require oxygen for the soil to function properly. So if you keep the soil completely wet and there's no air there, then the roots are starving for oxygen." Which of the following situations requires the most watering? | [
"Newly planted trees in sandy soil",
"Newly planted trees in clay soil",
"Well-established trees in clay soil",
"Well-established trees in sandy soil"
] | null | A | |
mmlu_stem | mmlu_stem_7589 | Mom noticed that something was wrong when I started getting so thirsty, I'd have a lot to drink before bed, which was unusual for me. One time, I opened a big container of apple juice and kept refilling my glass. Before I knew it, I'd drunk the entire container! My mom call my doctor. I then had a few blood tests, and the results were certain ------ I had diabetes, which meant that the amount of sugar in my blood was very high. That can be dangerous, so I had to learn how to control my blood-sugar level. My eating habits had to change in a big way. With diabetes, I can't eat a lot of sugar or carbohydrates. I have to figure out exactly how much sugar I plan to eat, and then I get an injection of insulin before the meals to help my body process the food. Also, I test my blood-sugar level often. I'm always trying to keep my blood sugar at a healthy level. The level can drop when I exercise, but that doesn't keep me out of gym class or off the basketball court ------ I just keep some juice boxes around to _ my blood sugar if I need to. It's a lot of work ------ and not a lot of fun ------ to keep track of everything, but I've gotten used to my new habits. I was a little scared at first because I wasn't sure how my life would change. Once I knew what I needed to do, though, it wasn't a big deal. My life is different now from what it was before, but it has become completely regular to me. What did the author do after knowing she had diabetes? | [
"She stopped playing basketball in the gym.",
"She controlled her blood-sugar level strictly.",
"She stopped eating food with natural sugar.",
"She tested her blood-sugar level before every meal."
] | null | B | |
mmlu_stem | mmlu_stem_11741 | In June, 2007, a group of students from eight high schools in Winnipeg, the capital of Canada's Manitoba province, will begin test-launching a satellite the size of a Rubik's cube. The one-kilogram Win-Cub satellite, named for its home city and its shape, will be put into low orbit. Once in space, it can perform for a few months or up to several years, communicating information that could help find the signs of earthquakes. There are 80 similar satellite projects worldwide, but this is the first high-school based program of its kind in Canada. 30 Manitoba high school students are having a hand in designing and building the satellite, in cooperation with aerospace experts and 10 students from the University of Manitoba, and with support from two other organizations. The Win-Cube project is not something that goes on a piece of paper; it is real-world engineering, allowing high school students to have an opportunity to learn more about the exciting world of engineering through their participation in this challenging program. It is also taken as a wonderful example of the unique partnerships within Manitoba. Designing, building and launching a satellite with high-school participation will bring this world-class educational project into reality and Manitoba closer to space. "These Manitoba high school students deserve congratulations for their enthusiasm, innovation , and a strong love for discovery," said Education, Citizenship and Youth Minister Peter Bjomson. "We want to make science more relevant, interesting and attractive to high school students by showing them how classroom studies can relate to practical experience in the workplace or, in this case, in space," Bjomson added. The Win-Cube program is mainly aimed at inspiring a strong desire for discovery on the part of the students. It also shows Manitoba's devotion to research and innovation and the development of a skilled workforce -- all important drivers of knowledge-based economic growth. 40. The best title for this passage may be _ . | [
"Manitoba School",
"Win-Cube Program",
"Space Co-operation",
"Satellite Launching"
] | null | B | |
mmlu_stem | mmlu_stem_11130 | We are always attracted by the sea. From it we can get food, minerals and treasures. For thousands of years, we just sailed on it but couldn't go far under its surface. We want to explore deep into the sea. However, we are not fish. We must breathe, so we can't stay underwater for long. To explore deep water, we face even more dangers and problems. A diver trying to stay underwater for a long time must breathe air or a special mixture of gases. He can wear a diving suit and have air pumped to him from above. He can carry a tank of air on his back and breathe through a special pipe. Water weighs 800 times as much as air. Tons of water pushes against a diver deep in the sea, so his body is under great pressure. When a diver is under great pressure, his blood takes in some of the gases he breathes. As he rises to the surface, the water pressure becomes less. If the diver rises too quickly, the gases in his blood form bubbles . The diver is then suffering from a kind of illness. This kind of illness can cause a diver great pains and even kill him. The text is mainly about _ . | [
"special mixture of gases in the deep sea",
"the problems a diver faces in the deep sea",
"air pressure under the surface of sea water",
"a kind of illness that a diver suffers in the sea"
] | null | B | |
mmlu_stem | mmlu_stem_8720 | 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. Which of the following things does the writer suggest that you should do before you began your talk? | [
"Drink water-down fruit juice.",
"Have some drink with cream.",
"Have some cool milk.",
"Have high tea."
] | null | A | |
mmlu_stem | mmlu_stem_14754 | Recently,a solar powered plane took to the sky for the first time. It had passed an important test on the way to travel around the world. The plane took off from an airport in Switzerland at 45km an hour. It slowly rose above the fields and into the sky. "There has never been an airplane of that kind that could fly -- never an airplane so big, so light, using so little energy," said Bertrand Piccard, a leader of the project. During the 90-minute flight, the plane did several turns. It climbed nearly 1.6km above the countryside. Engineers plan to test a night flight before July. Then they will use the results of the tests to build a second plane. They plan to travel around the world in that plane in 2012. The plane flies at 70 km an hour. That is faster than a bike and slower than a car. Piccard and pilot Andre Borschberg will take the plane around the world. The pilots will keep the plane in the air for up to five days at a time. "We want to fly it day and night with no fuel ," Piccard said What's the most special about the plane? | [
"It uses no fuel",
"It's the fastest plane",
"It can fly highest",
"It's the heaviest plane"
] | null | A | |
mmlu_stem | mmlu_stem_20615 | Which of the following changes shape of an object? | [
"spinning liquid mercury",
"blowing on gases",
"ripping paper",
"cutting water"
] | null | C | |
mmlu_stem | mmlu_stem_5791 | Kewen Lichadson is thirty two years old now. He works in the Lasailian Park in the South Africa, where many wild animals such as lions, tigers, leopards and wolves are living. When you get there you may have a chance to see him playing with these wild animals without anything to protect himself except a small bag of pepper . Sometimes he would go swimming with them side by side. It is reported that nearly all the wild animals are brought up by him even from the time they were six months old. For so many years he has cared for them day and night that they have made great friendship between them. "Sometimes if I could not get home at night I would stay with these animals throughout the night. It's quite warm and safe." He often says to the reporter. "Compared with animals, the human beings are less trusted." he may go on. "You needn't have to worry about whether these wild animals could make a secret attack from the back, but for the human beings I can't give you a good answer because, I believe, they are more cunning ." When asked why, he would tell you, "I'm not a talented animal tamer, you know. But I believe, like any of us they have their own feelings. Instead of sticks, whips or iron chains , I treat them with as much patience and respect as possible. Perhaps this might be dangerous but for me this is not a kind of job but love." We can't learn from the passage that _ . | [
"we should love and respect the animals",
"we should live with the animals peacefully in this world",
"the animals are also lovely and friendly",
"the animals are usually more clever than the human beings"
] | null | D | |
mmlu_stem | mmlu_stem_10066 | My son and I were trying to sell the house we had repaired, but in the barn there were bats and they would not leave. The barn was their home. They told us so in their own way they hung for the season. "Don't worry about it, Dad." Patrick said. "They keep down the mosquitoes ." Unfortunately they also kept the buyers away. When we had asked a person to sell the house for us he had refused to show it because of the bats. "Bats are popular," Patrick comforted me. "They are ecological." "Isn't there a machine you can buy that produces high-frequency sounds to keep bats away?" " I don't know," said Patrick. "But I like bats, and whoever buys this house will probably like them too.' "Probably?" I hated that word. "How many bats are there, anyway?" "I counted about 90 last night," said Patrick. "They were dropping out from under the edge of the roof." "You mean there are more------outside?" "They're everywhere, Dad. But look at it this way. When the cold weather comes, they'll be off to Mexico. Maybe in the spring we can keep them out. Don't worry about it," he said for the the hundredth time. "It's not a problem." The bat expert I called was even more active than Patrick. "I think you've got a large number there," he said in wonder. "I've been trying to attract bats to our house for 25 years. A single bat ears up his weight in mosquitoes and black flies three times every night. You've a very lucky man." I offered to share my luck with him. He could take them away. "Bats have a remarkable homing instinct ," he said. "They'd fly straight back even if I transported them 100 miles. Once they have settled, you can't stop them from coming back." I was silent. Finally we managed to rent the house to a young family, who were also interested in buying it. "What about the bats?" I said to Patrick. "Oh, they love the bats," he said. "No mosquitoes. No black flies. It's one of the things that attracted them." "Do you think they will really buy the house?" "Probably? Well, if they do, I suppose I'll have to admit that I was wrong." "You mean you're going to eat your words?" "Yes. I am." What happened to the house in the end? | [
"Some people agreed to rent the house.",
"The author failed to find anybody who wanted to live in the house",
"The bat expert made the decision to buy the house.",
"The bats left the house for Mexico in the spring."
] | null | A | |
mmlu_stem | mmlu_stem_15158 | Sugar--free beets that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe longer are all foods that are being grown now. How can they carry traits, such as being tastier, brighter, and riper? They are genetically engineered. Genetic engineering is like making a change in a recipe. For example, when you make cakes, you mix together all of the usual ingredients. If you add an extra ingredient, like salt, the cakes will taste differently. Genes are ingredients in the recipe for life. They carry the traits of living things. Your genes dictate what color hair and eyes you'll have, how tall you'll be, as well as many other traits. Genes carry traits for plants, too. By adding genes to a plant, you can sometimes create new traits. For example, adding a certain gene to a potato plant can make the potato plant distasteful to bugs . This makes some farmers happy because they don't have to use chemicals to keep bugs away from their plants. It sounds great, but some people are opposed to the idea of food that is genetically engineered. Ronnie Cummins, from the Campaign for Food Safety, is against it. He says that one of the major concerns is allergies . Supermarkets don't always label foods that are genetically engineered. A customer could unknowingly buy food that has an added gene from another plant that he or she is allergic to. It could be dangerous. Gary Burton from Monsanto, a seed company that engineers food, disagrees. He says his company tests for allergies. Burton believes that genetic engineering is a valuable tool for making better food. The technology can help farmers use less insecticide and grow healthier crops. Burton thinks there are many advantages. But Cummins says that we just don't know what will happen in the future if we keep adding genes to foods. We could mistakenly create a monster. People have different opinions about genetic engineering. One side supports it and thinks it will only help us. The other side is opposed to playing with nature and fears health risks. Which side do you think is right? In general, who does not support the idea of genetic food? | [
"People from seed companies.",
"Farmers who use engineered seeds.",
"People from the Campaign for Food Safety.",
"Scientists who create genetically engineered food."
] | null | C | |
mmlu_stem | mmlu_stem_17334 | One example of matter is | [
"sound",
"light",
"heat",
"water"
] | null | D | |
mmlu_stem | mmlu_stem_8522 | Most people are aware that outdoor air pollution can damage their health,but many do not know that indoor air pollution can also have significant health effects.Environmental Protection Agency studies indicate that indoor levels of pollutants may be 3~5 times,and occasionally more than 100 times,higher than outdoor levels.These levels of indoor air pollutants may be of particular concern because most people spend about 90% of their time indoors. There are many sources of indoor air pollution in any home.These include sources such as oil,gas,coal,wood,and tobacco products,building materials,wet or damp carpet,and furniture made of certain pressed wood products,products for household cleaning and maintenance,personal care,or hobbies,central heating and cooling systems. Immediate effects may show up after a single exposure or repeated exposures.These include _ of the eyes,nose,and throat,headaches,dizziness.Such immediate effects are usually shortterm and treatable.Sometimes the treatment is simply removing the person's exposure to the source of the pollution,if it can be identified. The likelihood of immediate reactions to indoor air pollutants depends on several factors.Age and preexisting medical conditions are two important influences.In other cases,whether a person reacts to a pollutant depends on individual sensitivity,which varies tremendously from person to person.Some people can become sensitized to biological pollutants after repeated exposures,and it appears that some people can become sensitized to chemical pollutants as well. Certain immediate effects are similar to those from colds or other viral diseases,so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution.While pollutants commonly found in indoor air are responsible for many harmful effects,there is considerable uncertainty about what concentrations or periods of exposure are necessary to produce specific health problems.People also react very differently to exposure to indoor air pollutants.Therefore,further research is needed to better understand the effects of indoor air pollution and to find efficient ways to protect our health. Which of the following might be the best title for the passage? | [
"Reactions of Pollution",
"Danger from Home",
"Pollution Resources",
"Different Pollutions"
] | null | B | |
mmlu_stem | mmlu_stem_13282 | A predator kills and eats other animals as prey .Sometimes it also becomes food for other predators. Polar bears are the largest of all the land predators. They can run across snow and swim in icy water for hours without rest. Their favorite food is seal. Not all big animals live on small animals. Hippos have heavy bodies and huge mouths. But they don't eat animals. They just eat grass. Some predators use speed to catch their prey. Cheetahs are the fastest animals on land. They can run up to 70km an hour. Other predators use their senses to find their food. Sharks can see, smell, hear, feel and taste. They can also sense electrical currents( )from other animals' bodies. Some fish try to hide themselves, but with this sixth sense, sharks can always find them. Sharks have smooth bodies. This helps them swim without using lots of energy. They need to save their energy because they never really sleep and never stop hunting. Flying is a useful skill for many predators in the sky. The butcher bird is the most interesting predator. It has a special way of eating its prey. First it kills its prey. Then it hangs it on a fence or in a tree, just like a butcher hangs meat in his shop. Finally, it eats its prey. Some people hunt and kill more animals than any other predator. They not only hunt for food. They also hunt for fun. They kill sharks for their fins, and tigers for skins. Those human hunters are the worst predators on Earth. Among the sharks, the tigers, the polar bears and some people, which are the most dangerous predators on earth? | [
"the sharks.",
"the tigers.",
"the polar bears.",
"some people."
] | null | D | |
mmlu_stem | mmlu_stem_6318 | Hee-haw! Scores of farms across the country are opening up to overnight guests. _ Sure, you and your kids plan to conquer the theme parks. In the meanwhile, why not make a little hay? Farm stays are fast becoming the great American alternative to the pre-packaged vacation. LIBERTY HILL FARM Rochester, Vt.; 802/767-3926; www.libertyhillfarm.com. Adults$75, teens $50,kids 12 and under $35, including breakfast and dinner; shared baths. Beth and Bob Kennett run a farm straight out of a storybook. You'll find Beth in the kitchen, rolling out dough for a pie. Bob's busy with other work. Guests sleep in seven sunny bedrooms right in the farmhouse and can participate in any of the farm jobs. Maybe you and your kids won't be up at 6 a.m. to meet the milk truck, but you can help with the milking twice a day, collect eggs, and pick sweet corn and wild blackberries in season. HULL-O FARM Durham, N.Y.; 518/239-6950; www.hull-o.com; Adults $110, kids 10--14 $60, 5--9 $50, 2--4 $35, under 2 free, including breakfast and dinner; private baths. It started in 1993 as a way to bring in some extra money at a time of falling milk prices. But soon after Frank and Sherry Hull opened their Catskill Mountains dairy farm to overnight visitors, they discovered they loved it. As you drive up, Sherry greets you on the porch of the 1825 farmhouse with a cow-shaped cookie jar. Before long your kids are playing around with the cows, sheep, ducks, goats and getting ready for a hayride . MERAMEC FARM CABINS Bourbon, Mo.; 573/732-4765; http://www.wine-mo.com Doubles with private bath $75, $10 per additional person. Trail and riding fees extra. Climb onto the back of the Ford pickup and catch up with the herd. One gentle cow named Cricket will even let the kids sit on her back. At the barn , Carol will introduce you to the horses ---15 Missouri Fox Trotters --- and lead you on a trail ride over the hills and down along the spring-fed Meramec River, where everyone swims. Grab a fishing pole and head back to the river. When you have your fill of the wild, try Carol and Dave's favorite restaurants or wineries , within 20 miles of the farm. The Browns have a 13-year-old son and 11-year-old daughter. If they stay on Liberty Hill Farm for one night, how much will they pay? | [
"$175.",
"$220.",
"$235.",
"$250."
] | null | C | |
mmlu_stem | mmlu_stem_8754 | Trees should only be pruned when there is a good and clear reason for doing so and , he number of such reasons is small . Pruning involves the cutting away of overgrown and unwanted branches , and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way . First , pruning may be done to make sure that trees have desired shape or size . The object may be to get a tree of the right height , and at the same time to help the growth of small side branches , which will thicken its appearance or give it a special shape . Secondly , pruning may be done to make the tree healthier . You may cut out diseased or dead wood , or branches that are rubbing against each other and thus cause wounds . The health of a tree may be encouraged by removing branches that are blocking up the center and so preventing the free movement of air . One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease , but it is a wound that will heal . Often there is a race between the healing and the disease as to whether the tree will live or die , so that there is a period when the tree is at risk . It should be the aim of every gardener to reduce that risk of death as far as possible . It is important to make the area , which has been pruned , smooth and clean , for healing will be slowed down by roughness . You should allow the cut surface to dry for a few hours and then paint it with one of the materials available from garden shops produced especially for this purpose . Pruning is usually done in winter , for then you can see the shape of the tree clearly without interference from the leaves and also it is very unlikely that the cuts you make will bleed . If this does happen , it is , of course , impossible to paint them properly . Why is a special material painted on the tree ? | [
"To help a wound to dry .",
"to cover a rough surface .",
"To make a wound smooth .",
"To prevent disease entering a wound ."
] | null | D | |
mmlu_stem | mmlu_stem_19903 | Every single bit of growth and life on earth is connected to the power of | [
"solar aliens",
"magic orbs",
"magic beans",
"daylight"
] | null | D | |
mmlu_stem | mmlu_stem_16308 | Mr Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea." "OK, Dad," said his son. But he was afraid his son couldn't remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it every now and then. Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, "Where is your father?" The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, "No more." The man was very surprised. He asked, "No more? I met your father last week. When did it happen?" "Burnt yesterday evening." A man came to visit the boy's father on _ . | [
"the second day",
"the third day",
"the fourth day",
"the fifth day"
] | null | D | |
mmlu_stem | mmlu_stem_15747 | Mary is four years old. She likes to ask questions. Her questions are often funny. One day Mary goes to see her uncle with her father. Her uncle lives in _ city. The city isn't near their city, so they take a bus to go there. After many hours, they get to Mary's uncle's city. He is very happy to see them. The next morning, Mary's uncle takes her and her father out and shows them around . "Look at that big house," says her uncle. " It's the oldest house in the city." "How old is it?" her father asks. "It is about 2100 years old," her uncle answers."How can that be?" Mary says. "It's only 2015 this year!" ,. Which one is TRUE? | [
"Mary is a five-year-old girl.",
"Mary's uncle lives in the same city.",
"The big house is about 2100 years old.",
"Mary's father doesn't see the big house."
] | null | C | |
mmlu_stem | mmlu_stem_15821 | When most people think of the Olympics, they don't think of science. But in the USA, each year, students take part in a kind of competition called the Science Olympiad. It has a lot of different events. Students go there to show how much they know about the science of music, biology, chemistry and others. My best event is forestry . This time, I went to the Olympiad with my school's team. We had worked hard, but this was the state competition. It would be hard to win. The Olympiad was out of town, so we got to ride on a bus and stay in a hotel for a night. The Olympiad was in three big rooms. When we got there, we set up our team's "camp" off to one side. The big day had come at last! First, I went to watch the tower building competition. That's when students build small towers and put heavy things on top of it. They hope they can hold them up. One of my schoolmates was putting things on her tower. She was nervous, and in the end it was too heavy for her tower to hold it--it broke! I felt bad for her. After lunch, I helped some teammates with their events. One was geography, and the other was history. I don't know much about those things, so I just watched my teammates do most of the work. At last, it was time for my favorite event--forestry. Another student was also in the forestry event. The rules were easy. We had to look at more than 40 different kinds of leaves and find out which plants they were from. We also had to answer some questions about the uses of each leaf. I knew almost all of the leaves and could answer most of the questions. I had spent more than a month studying on the Internet to get ready. At the end, it was time for the awards , I was nervous, because the forestry awards were last. We won second place in the whole state! A nice man gave me a medal and smiled at me. I had a great time at the Science Olympiad. I can't wait for next year! Choose the best answer according to the passage. The writer felt _ about the competition. | [
"nervous",
"excited",
"sad",
"bad"
] | null | A | |
mmlu_stem | mmlu_stem_16447 | Do you like animals? Come to Xinxin zoo to see the Australian koalas and lions from South Africa. The American tigers are waiting for you. Do you want to see penguins? They are kind of interesting. We also have very cute pandas, but they are a little shy, so please be very quiet. You can play with the dolphins. They are smart and cute. Do you like the giraffes? They are fun. And there are many other animals, too. It's really exciting! Tickets :Grown--ups :Y=2.00 Students of 6--12:Y=1.00 Time: Monday--Friday: 9:00 a.m--4:00 p.m Saturday--Sunday:8:00 a.m--5:00 p.m Don't give food to the animals. Tom is 12 years old, he goes to the zoo with his parents. How much do they need to buy the tickets? | [
"2 yuan",
"3 yuan",
"4 yuan",
"5 yuan"
] | null | D | |
mmlu_stem | mmlu_stem_19202 | Why would some birds have beaks that look a lot different than those of other birds? | [
"some of the birds eat worms and the other birds have blue feathers",
"some of the birds of the same species have lived in a zoo all their lives",
"some of the birds take seeds for nourishment and the others look for dead animals for nourishment",
"some of the birds like to file down their beaks"
] | null | C | |
mmlu_stem | mmlu_stem_17129 | On a small, isolated island, a hurricane destroyed all the trees that produced a large, hard-shelled nut. Which bird population would most likely decrease? | [
"birds with long, probing beaks",
"birds with thick, strong beaks",
"birds with thin, short beaks",
"birds with large, pouch beaks"
] | null | B | |
mmlu_stem | mmlu_stem_18606 | Which organ system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment? | [
"circulatory",
"excretory",
"immune",
"respiratory"
] | null | D | |
mmlu_stem | mmlu_stem_3415 | 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. Where or how can we probably find antimatter nowadays? | [
"By setting off an explosion",
"inside the earth",
"on the edge of the atmosphere",
"everywhere in the universe"
] | null | C | |
mmlu_stem | mmlu_stem_17080 | Hello! My name is Kate Green. I'm a student in No. 14 High School. I have classes from Monday to Friday. I have many things to do after class. On Monday and Wednesday, I help my friends with their English. On Tuesday and Thursday, I make model planes. On Friday afternoon, I have a good rest at home and do my homework. Now it is 8:30 in the morning. I am having a math class. I am listening to the teacher. My friends Li Lei and David are writing something. All of us are working hard. ,. _ are writing something at 8:30. | [
"Li Lei and Kate",
"Li Lei and David",
"Kate and Green",
"Kate and David"
] | null | B | |
mmlu_stem | mmlu_stem_4062 | A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world's poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity. Yet spoiled food not only creates health risks but also economic losses. Farmers lose money when they have to throw away products that they can not sell quickly. But in 1995, a teacher in northernprefix = st1 /Nigerianamed Mohammed Bath Abba found a solution. He developed the "Pot-in-Pot Preservation/Cooling System". It uses two round containers made of clay. A smaller pot is placed inside a larger one. The space between the two pots is filled with wet sand. The inner pot can be filled with fruit, vegetables or drinks. A piece of wet cloth covers the whole cooling system. Food stored in the smaller pot is kept from spoiling through a simple evaporation process. Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving. The evaporation process creates a drop in temperature of several degrees. This cools the inner pot and helps keep food safe from harmful bacteria. Some foods can be kept fresh this way for several weeks. People throughoutNigeriabegan using the invention. And it became popular with farmers in other African countries. Mohammed Bah Abba personally financed the first five thousand pot-in-pot systems for his own community and five villages nearby. In 2000, the Rolex Watch Company ofSwitzerlandhonored him with the Rolex Award forEnterprise. This award recognizes people trying to develop projects aimed at improving human knowledge and well-being. A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history. Winners receive financial assistance to help develop and extend their projects. The award is given every two years. The next one will be given in 2008. What makes foods go bad if they get too warm according to the text? | [
"The water in the food.",
"The air around the food.",
"The harmful bacteria.",
"The writer doesn't mention it."
] | null | C | |
mmlu_stem | mmlu_stem_17083 | Do you like walking? A 13-year-old girl named Jenny likes walking very much. She likes walking because she thinks it is good for her health. "It's about 6 kilometers from my home to school. I get up at 6:00 every morning. After having breakfast, I walk to school. I can enjoy the beautiful _ on the way. I feel very happy. I can also think about what to do or how to do things at school on the way," says Jenny. "My father buys a new car and he wants to take me to school every morning. But I think I need to exercise and I hope my father can exercise, too. Now he often walks to work. After dinner, my father, my mother and I often take a walk in the park near our house. I have a healthy and happy family." Who does Jenny go walking with? | [
"Her mother.",
"Her father.",
"Her parents.",
"Her classmates."
] | null | C | |
mmlu_stem | mmlu_stem_12630 | Scientists have made the world's first human-sheep----with the body of a sheep and half-human organs . Amazing, but true. The sheep is15percent human and 85 percent sheep. The breakthrough makes it possible to use animal organs in human bodies in the future. Professor Esmail Zanjani of University of Nevada, US, has spent seven years And over $9 million on the work. Zanjani took stem cells from the human body and put them into the sheep while it was still in its mother's body. The stem cells made other cells that grew into organs. Zanjani believe that in the future such sheep might be used to help humans. Two months later a human-sheep is born, it has a liver , heart, ling and brain that are part-human. These organs could be used to help people in need of them. There are different opinions about his work, however. Some say that scientists don't have the right to create new creature . Using animal organ might bring animal viruses into human bodies. Others are afraid that the work might change sheep. But Professor Anjani has said that this is impossible. According to the passage, we know that the first human-sheep looks like _ . | [
"a sheep",
"a goat",
"a cat",
"an elephant"
] | null | A | |
mmlu_stem | mmlu_stem_8478 | prefix = st1 /Britainis facing a sharp rise in its rat population as growing numbers of people leave fast food scraps in the street , an environment group warned . Keep Britain Tidy said the rodents were stopping their traditional hunts underground and were roaming the streets ,tempted by discarded burgers ,pizzas and crisps. "The rat population is on the rise and soon it'll be as common to see a rodent on our street as it is to see a dog or a cat," said group Director ,Sue Nelson. The practice of dumping fast food litter and scraps on the street rather than in the trash-with young men the worst offenders-was behind the rise. According to the National Rodent Survey in 2005, Britain's rat population has grown by nearly one quarter since 2000 and is now estimated at 60 million , two million more than the human population. On average a rat can give birth every 24--28 days and just a single pair of rats can produce a colony of 2,000 a year. Around 200 people a year get Weil's Disease----an infection which can lead to liver or kidney failure and eventually death and which is arrived in rat's waste. To highlight the issue , Keep Britain Tidy launched a cinema ad entitled "How close do you want them to get?" The advertisement gave a shocking image of a young woman sleeping in a bed of rots, echoing the nightmare scene from James Herbert's classic horror tale The Rats, in which mutant rodents begin to prey on humans. We may infer from the passage that _ . | [
"Well's Disease will finally end the world",
"pizzas and crisps will become poisonous",
"rats will endanger human beings' life",
"young people are to blame for the rat population"
] | null | C | |
mmlu_stem | mmlu_stem_2198 | Which of the following is a property of CO2 gas? | [
"It feels like a rock.",
"It smells like a lemon.",
"It is colorless.",
"It is hard."
] | null | C | |
mmlu_stem | mmlu_stem_17336 | Cells that conduct messages are known as | [
"skin cells",
"nerve cells",
"blood cells",
"kidney cells"
] | null | B | |
mmlu_stem | mmlu_stem_18548 | Water that is used to cool nuclear power plants can be released into water bodies, causing an area called a thermal plume. A thermal plume can be 12-18°C warmer than surrounding waters. Although some fish may be attracted to the warmer water, other organisms may not be able to survive. Government officials order a study to determine the effects of a thermal plume in a water body near a nuclear power plant in North Carolina. Which factor most related to temperature should the study focus on in order to determine whether the thermal plume is damaging the health of the water system? | [
"pH",
"dissolved oxygen",
"nutrient concentration",
"turbidity"
] | null | B | |
mmlu_stem | mmlu_stem_1190 | One important difference between living things and nonliving things is that only living things have | [
"compounds",
"elements",
"molecules",
"cells"
] | null | D | |
mmlu_stem | mmlu_stem_1411 | The skin is the largest organ in the human body. Why is skin considered to be an organ? | [
"It is made of cells.",
"It acts as a barrier.",
"It is made of tissues.",
"It is part of an organism."
] | null | C | |
mmlu_stem | mmlu_stem_19667 | Bears dine on the some of the same things as | [
"plants",
"eukaryotes",
"apes",
"amoebas"
] | null | C | |
mmlu_stem | mmlu_stem_1828 | Josh was going on an adventure. He was going to float down the river with his friends, Dennis and Connor. They had been building a boat out of wood Connor's father had given them for the last week. The boys wanted to paint the boat because the brown wood did not look very good. Josh wanted green, Dennis liked purple and Connor said it would look good if it was red. They had to call their friend, Tonya, to help choose. Tonya thought the same as Josh on the color so that is what they painted the boat. To thank Tonya for helping them choose the color, the boys invited her to come with them. All four of them carried the boat through the vegetable garden in the back yard. They were very careful not to step on any of the carrots, potatoes or green beans. Josh's mother had packed some food for them to eat as they floated down the river. Everything was in a big basket. There were peanut butter sandwiches, potato chips and cupcakes with strawberry frosting. Each person had a job on the boat. Josh was the captain. Dennis made sure the snacks did not get wet. Tonya watched for rocks ahead. Connor had to steer the boat. What color did the boys paint the boat? | [
"Purple.",
"Red.",
"Green.",
"Brown."
] | null | C | |
mmlu_stem | mmlu_stem_3663 | No one is glad to hear that his body has to be cut open by a surgeon and part of it taken out. Today, however, we needn't worry about feeling pain during the operation. The sick person falls into a kind of sleep, and when he awakes, the operation is finished. But these happy conditions are fairly new. It is not many years since a man who had to have operation felt all its pain. Long ago, operation had usually to be done while the sick man could feel everything. The sick man had to be held down on a table by force while the doctors did their best for him. He could feel all the pain if his leg or arm was being cut off, and his fearful cries filled the room and the hearts of those who watched. Soon after 1770, Josept Priestley discovered a gas which is now called "laughing gas".Laughing gas became known in America.Young men and women went to parties to try it. Most of them spent their time laughing,but one man at a party,Horace Wells,noticed that people didn't seem to feel pain when they were using this gas.He decided to make an experiment on himself.He asked a friend to help him. Wells took some of the gas,and his friend pulled out one of Well's teeth.Wells felt no pain at all. As he didn't know enough about laughing gas, he gave a man less gas than he should have. The man cried out with pain when his tooth was being pulled out. Wells tried again,but this time he gave too much of the gas,and the man died.Wells never forgot this terrible event. It is _ since a man being operated felt all the pain. | [
"a few more years",
"not long",
"few years",
"two thousand years"
] | null | B | |
mmlu_stem | mmlu_stem_14292 | Some people don't like the number 13. They don't think 13 is a _ or good number. For example , they don't like to live on the 13th floor . My friend Mary is one of them. She asks some friends to her home. All of her friends get to her home. They sit at the table. Then Mary counts, "One, two, three ...oh, my God! There are thirteen people here!" Everybody's face turns white, but Mr. Brown doesn't. He says, "Don't worry , dear friends! We have fourteen people here. My wife will have a baby next week. _ is in the family way now. " All of them become happy again. "Congratulations !" they say to Mr. and Mrs. Brown. They enjoy the nice food and have a good time this evening. Everybody's face turns white, because _ . | [
"there are thirteen people",
"there are fourteen people",
"they don't like Mr. Brown",
"they don't like the baby"
] | null | A | |
mmlu_stem | mmlu_stem_21566 | the muscle that never sleeps takes oxygen rich what to the body | [
"tar",
"plasma",
"antibodies",
"acid"
] | null | B | |
mmlu_stem | mmlu_stem_14541 | Today almost everyone knows computers and the Internet. If I ask you "What is the most important thing in your life?" may be you will say "Computers and the Internet". The first computer was made in 1946. It was very big but it worked slowly.. Today, computers are getting smaller, and smaller, but they work faster and faster. What can computers do? A writer has said, "People can't live without computers today."21cnjy.com The Internet came a little later than computers. It is about twenty-five years later than computers. But now it can be found almost everywhere. We can use it to read books, send e-mails, do some shopping, play games or make friends. 21*cnjy*com Young men, especially the middle school students like the Internet very much. They often go into the Internet bars as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don't know their names, ages and sex . They are so interested in making the "unreal friends" that they can't put their heart into study. Some of them play the games in the Internet bars all day and all night. Many of them can't catch up with others in many subjects because of that. Now the government has done many things. Some gangster Internet bars have been banned . But that's not enough. The teachers and parents are still worrying about their students and children. We can use computers and the Internet to learn more about the world. But at the same time, we should remember that computers and the Internet could not do all the things.www-2-1-cnjy-com Which is the best title of the passage? | [
"Computers and the Internet.",
"The Greatest Invention of This Century.",
"Gangster Internet Bars.",
"How to use the Internet"
] | null | A | |
mmlu_stem | mmlu_stem_11204 | If English is not your first language, it is a good idea to take English language classes to improve your written and spoken communication skills. There are many ways to learn English. You can learn from a book, a DVD, on the Internet or by attending classes. One of the most successful ways to improve your English is to join a course in a country where English is widely spoken. The more you practice, the more you will learn. But why learn the English language? English is an important language for anyone who is planning to travel or become involved in business. Many people love travelling, but if their English is poor, it can be difficult to understand signs, read directions and make themselves understood. Before travelling, it is important to understand the culture and customs of the places you visit. Learning basic English before you travel will help you to understand these customs and avoid mistakes that could be embarrassing. When you are travelling, you will also enjoy meeting new people. If you can speak English, you will have a better chance of being able to communicate with the people you meet. Many of your new friends will speak English and others will have English as a second language. Without English, your friendships will be limited as you travel around the world. If you are involved in business, it is important to be able to communicate in English. The Internet, world travel and modern communication systems have made the world seem like a much smaller place. These days business people interact with customers and other business people from all over the world. That makes your English language skills more important than ever. There are many English language courses that major in business communications. Improving your English skills is one of the best things you could ever do to increase your chances of business success. What kind of people is English important to according to the passage? | [
"Travelers.",
"Teachers.",
"Students.",
"Language experts."
] | null | A | |
mmlu_stem | mmlu_stem_15572 | Uncle Wang works in a book shop in the middle of the city. The shop is not far from his home. It is about one kilometer away. So Uncle Wang seldom goes to work by bus. He usually goes bike there by bike, sometimes on foot .It takes him twenty minutes to get there by bike and forty minutes on foot. Today his bike is broken. He wants to walk there. Now he is having breakfast. He leaves home at 7:50 and he walks to work twenty minutes earlier. His work starts at 8:30 in the morning and finishes at 4:45 in the afternoon. Today his bike is _ . | [
"broken",
"new",
"good",
"beautiful"
] | null | A | |
mmlu_stem | mmlu_stem_4565 | "I don't want to buy a traditional yearbook. I can keep and share memories of my high school on the Internet."You may often hear this from many American high school students now. Instead of buying a book, more and more students choose to sign up at My Yearbook.com. My Yearbook.com was created by two teenagers, Catherine Cook and her brother, 18-year-old David Cook, in 2005. They built it up to about 950,000 members in a year. The site allows people to create a profile with separate sections for high school, college, graduate school and professional life. Students who sign up are linked to other people at their school. Acting as their own editors, they can select friends from their classmates. The site also connects students through clubs and spprts pages. Like other so-called social-networking sites, it allows members to show photos and post messages. Students can do lots of things that old-fashioned yearbooks can't offer, including hearing music and watching videos. Catherine and David developed the idea because they thought that their own yearbooks weren't good enough and were too expensive. "We just think yearbooks are obsolete," said Catherine Cook, 16."If you think about it, all you're going to do with it is put it on the shelf and never really look at it." Many American teenagers want different things out of their yearbooks than their parents did. They like the idea of creating an online yearbook. That is the reason why My Yearbook.com is becoming more and more popular. Some people, however, still wonder if this free website can ever truly replace the traditional printed book of high-school memories-even for the generation that have grown up with the Internet. Some students would like to be the users of the My Yearbook.com as well as buy a traditional yearbook. The"war" between the tradition and the new technology will never end. Everyone is free to choose what he prefers and even has both. Catherine and David thought traditional yearbooks were _ . | [
"old-fashioned",
"newly-developed",
"well-informed",
"multi-functional"
] | null | A | |
mmlu_stem | mmlu_stem_5031 | Tea vs Coffee Tea and coffee are two of the most widely consumed drinks in the United States. With popularity and interest in tea continuing to grow in recent years, many consumers have recently considered making the switch from coffee to tea, if they have not done so already. All the buzz surrounding tea and coffee may have you wondering, what are the differences? As it turns out, the differences are many and varied. In the US, interest in tea ranges from coast to coast with the highest in Hawaii and California but stretching to the eastern states of Vermont and New York. On the other hand, the highest interest in coffee tends to be concentrated more in the north and western regions , with the highest search volumes appearing in the states of Hawaii, Washington and Minnesota. Differences between tea and coffee also vary in origin and production. All tea comes from the harvested leaves of the Camellia sinensis plant, while there are about 60 different species of coffee plants. Production of tea is quicker and more efficient: Camellia sinensis plants only need to grow for three years before they are ready to process; coffee plants take up to five years. Perhaps the most concerning issue consumers have when considering making the switch to tea is the question of caffeine. The good news is, when it comes to tea and caffeine, there is something for everyone. Unlike coffee, which typically only comes in decaffeinated and regular, there are several varieties of tea available, based on caffeine preference. From herbal teas that are naturally free of caffeine, to high quality green and black teas that offer less than half the caffeine of coffee, to high caffeine teas such as our specially formulated HiCAF(r) blends that contain slightly more caffeine than a cup of coffee, there is a variety sure to suit your needs. As an added bonus, the lower acidity levels in tea tend to be gentler on the stomach for a more comforting pick-me-up. So what is the answer, coffee or tea? If you are looking for the most healthful benefit possible, tea is probably the winner. They say a picture is worth a thousand words. If, like many Americans, the rising popularity in tea has your interest piqued, the images below will help to clearly spell out the differences between tea and coffee. According to the passage, which of the following contains the least caffeine? | [
"Green tea.",
"Black tea.",
"Herbal tea.",
"HiCAF(r) blends."
] | null | C | |
mmlu_stem | mmlu_stem_20770 | A person is wondering how much the steam from the pot of water that is boiling will measure. They are able to measure it in a definite way by | [
"making the liquid condense outdoors",
"remembering how big steam clouds are",
"burning the hot steam",
"collecting the condensed liquid"
] | null | D | |
mmlu_stem | mmlu_stem_17195 | Which statement best identifies a basic need of all animals? | [
"They need to eat.",
"They need to hide.",
"They need to jump.",
"They need to smell."
] | null | A |
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