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[ { "content": "Photos that you might have found down the back of your sofa are now big business! In 2005, the American artist Richard Prince's photograph of a photograph, Untitled (Cowboy), was sold for $ 1, 248, 000. Prince is certainly not the only contemporary artist to have worked with so-called \"found phot...
[ { "content": "NASA on September 28, 2015 announced the strongest evidence yet for liquid water on the red planet, increasing the possibility that astronauts journeying to Mars could someday rely on the planet's own water for their drinking needs. You may feel like you've heard about the hunt for liquid water on...
[ { "content": "If an animal is able to reproduce then\n\nChoices:\nA. that animal has matured\nB. that animal was impregnated\nC. that animal was in heat\nD. that animal was interested", "role": "user" }, { "content": "A. that animal has matured", "role": "assistant" } ]
[ { "content": "Bright blue Citi Bikes are becoming a fine sight in the New Yorker street. New Yorkers are gradually getting used to more pedaling passengers on those blue Citi Bikes. But what about local bike shops ? Is City Bike booming at their expense? At Gotham Bikes in Tribeca, a manager who gave his name ...
[ { "content": "If you haven't played games with an 80-year-old couple, you're missing out. Each week, my best friend and I hang out with senior citizens. Volunteering at a retirement village provides us with a great opportunity to meet new people and enrich the lives of the people we meet. We have learned so muc...
[ { "content": "Junelle Lynch knocked on more than 200 doors in the Gayln Manor neighborhood of Brunswick in recent weeks. Her aim is to collect hundreds of pounds of food for the Brunswick Food Bank. \"I like helping people a lot,\"said Junelle,who celebrated her 11th birthday in June. With the support of her pa...
[ { "content": "NEW YORK (Reuters Health)--Kids who eat better perform better in school, a new study of Nova Scotia fifthgraders confirms. Students who ate an adequate amount of fruit,vegetables,protein,fiber and other components of a healthy diet were significantly less likely to fail a _ test,Dr.Paul J.Veugeler...
[ { "content": "People travel a lot with Bel Air because they know they will get what they want. They want to go quickly and safely across the country, across the sea or right across the world, and they know Bel Air will take them where they want to go, when they want to go. Bel Air flies all the newest and faste...
[ { "content": "Qian Xuesen is one of the greatest scientists who devoted all their lives to China's science and technology. In 1911, he was born in Hangzhou, eastern China. Qian received a mechanical engineering degree in 1934 in Shanghai and went to the United States on a scholarship to study aeronautical engin...
[ { "content": "Do you have a lucky number? What is it? Many people have a special number that they hope will bring them good luck. In Chinese culture, some numbers are believed to be lucky or unlucky based on the Chinese word that the number sounds similar to. For example, the word for the number 8 sounds simila...
[ { "content": "Young people can have problems with their minds.Some students become worried because they have to study very hard.Others have trouble getting on well with people like their parents and classmates. Liu Wei,a junior 2 student from Hefei,could not understand his teacher and was doing badly in his les...
[ { "content": "\"Grandma, Grandma, tell us a story ! \"Four darling children sat by my feet, looking up at me expectantly. Suddenly, we were interrupted clapping.\"Terrific, \" the director said, stepping up the stage from the aisle .\"Except, co...
[ { "content": "Alex and Betty, who were cousins, acquired title in fee simple to Blackacre, as equal tenants in common, by inheritance from Angela, their aunt. During the last 15 years of her lifetime, Angela allowed Alex to occupy an apartment in the house on Blackacre, to rent the other apartment in the house ...
[ { "content": "Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly. You probably know how to ride a bike safely. Now learn to use a computer safely. Your eyes Too much light can injure your e...
[ { "content": "Scientists have tried to come up with biological explanations for the difference between boys and girls. However, none were believable enough to explain the general picture. As one scientist points out, \"There are slight genetic differences between the sexes at birth which may affect the subjects...
[ { "content": "SAN FRANCISCO--A phone app in San Francisco gives information about open parking spots. City officials in San Francisco introduced the app to try to reduce traffic jams in the city, but some say it raises safety concerns. In this city, drivers searching for parking spots lead to 30 percent of al...
[ { "content": "\"It's over!Thank goodness!\" School was over and I was tired.I sat at the front of the school bus. Janie,the driver,tries to break the uncomfortable atmosphere by striking the match of talks.I try to listen politely,but usually I am too busy thinking about my day.On this day,however,her tal...
[ { "content": "Working Americans expect to retire at age 66, up from 63 in 2002, according to a recent Gallup poll .But most retirees don't stay on the job nearly that long. The average retirement age among retirees is 62, Gallup found.And even retirement at age 62 is a recent development.The average retirement...
[ { "content": "Finding a friend doesn't seem like a difficult job. However, bad friends are easier to find than good friends these days. If you're sitting there and wondering if you have a bad friend, let me define it for you. A bad friend is someone whose jealousies and insecurities outweigh their love for some...
[ { "content": "Nowadays, a cellphone service is available to everyone, everywhere. Probably thousands of people have already been using it, but I just discovered it, so I'm going to claim it and also name it: Fake Foning. The technology has been working well for me at the office, but there are infinite applicat...
[ { "content": "Today is Tom's birthday. After school he walks past the shop on the street corner. He looks at the window. That pair of trainers is still there. He really wants to have them very much. He was very sad and walks away. He knows his mother can give him anything he likes if she can. But he also knows ...
[ { "content": "Which causes the electric fan to work?\n\nChoices:\nA. the blades run themselves\nB. power outlets allow the blades to rotate\nC. the air pushes the fan\nD. power outlets allow the fan to think", "role": "user" }, { "content": "B. power outlets allow the blades to rotate", "role": ...
[ { "content": "Just one bite of cake that is made with eggs is enough to make John feel very sick. Susan gets a terrible rash whenever she eats anything containing seafood, and David nearly died when he first ate a cookie that included peanuts. David had trouble breathing after he ate the cookie, but his mother ...
[ { "content": "Does everyone want a challenging job? In spite of all the attention focused by the media, academicians, and social scientists on human potential and the needs of individuals, there is no evidence to support that the vast majority of workers want challenging jobs. Some individuals prefer highly com...
[ { "content": "I loved my aunt Suzy. She was such a kind old lady. I loved going to her house on holiday. She had been sick for the last few years and, though my job had taken me away across the town, I tried to visit her as much as possible. I helped with the shopping, the cooking and the cleaning and taking he...
[ { "content": "One day when I left a bookstore and walked on the street, I saw a woman standing outside the post office. She looked pale and worried. I stopped and asked if she needed help. She told me that her foot was hurting and she had to go to the hospital fight away, but there was no taxi. I wanted to make...
[ { "content": "Stage fright or performance anxiety is the anxiety, or fear which may occur in an individual by the requirement to perform in front of an audience. It is most commonly seen in school situations, like stand-up projects and class speeches. It has numerous forms: heart beating fast, trembling hands a...
[ { "content": "According to a new survey, students' safety has become a big problem. Nearly 50% of students say they are worried about robbery on the way to and from school. Now in main big cities in China, some schools have taught an unusual lesson: self-protection. Students like this lesson because there are n...
[ { "content": "Dear Sir, I am writing to you about my stay at your hotel. My wife and I arrived on Saturday, May 15thand stayed for a week. Though we were treated well and found the service excellent, we think there are one or two things we should bring your attention. 1. We hoped for a nice holiday from our bus...
[ { "content": "Paul the pear lived in a bowl on the table. He was a plastic fruit, and no one could eat him. He sat in the bowl with Artie the apple and Gertie the grapes. He watched every day as the group of bananas that hung out in another basket got eaten one by one. He wished he could be taken along to work ...
[ { "content": "Worms die off during a heat wave. What affect does this have on the local fauna?\n\nChoices:\nA. Worms are glad their rivals have died off before them\nB. The dirt is cleaner than ever\nC. Monkeys can find more bananas\nD. Flying creatures have more trouble finding food", "role": "user" }, ...
[ { "content": "On May 23, Shenzhen introduced new rules in order to prevent the \"Chinese style of crossing the road\". \"Chinese people cross roads without thinking about traffic lights, so long as they are part of a group of people,\" said a post on Sina Weibo. A CCTV news program showed that in only an hour, ...
[ { "content": "Let's say you took violin lessons all through elementary school, but you haven't got the instrument out of its case for years. Were all those lessons a waste of your parents' money because you didn't become a violinist? Even though it has been a long time since you played the violin, a new study s...
[ { "content": "Shenzhen's fast development has made it become China's most crowded city! There are about 15 million people living on its 1991square kilometers. On each square kilometer averagely live 7500 people. It is 1080 more than that in Hong Kong, and nearly 800 more than that in Guangzhou. Besides, Shenzhe...
[ { "content": "Kendra and Quinton travel to and from school every day. Kendra lives further from the bus stop than Quinton does, stops every morning at Quinton's house to join him to walk to the bus stop. Every afternoon, after school, when walking home from the bus stop they go in for cookies and milk that Qu...
[ { "content": "Gauri Nanda sees a wearable computer as a handbag -- one that's built out of four-inch squares and triangles of fiber, with tiny computer chips embedded in it. It looks, feels and weighs like your typical leather purse. That's where similarities end: This bag can wirelessly keep track of your be...
[ { "content": "An explosion( ) from a factory in Kunshan killed at least 69 people and more than 120 people got hurt. China had its worst accident in industry on a Saturday in 2014. The accident happened in Kunshan city, Jiangsu Province in China. And the explosion was from Zhongrong Metal Products Company, who...
[ { "content": "The best thing about going to school is learning how to read. Books are great friends. They can help you to learn about anything you want to know. They can go anywhere with you. You can read about animals, faraway places, people, and anything else. Books are written by people called authors . Auth...
[ { "content": "One day, a man found the cocoon of a butterfly and he brought it home. A few days later, the man saw a small hole in the cocoon. He sat and watched for several hours as a butterfly struggled to force its body through that little hole. Then it stopped. So the man decided to help the butterfly. He...
[ { "content": "After a long, hard workout, many professionals will help their body to heal by consuming\n\nChoices:\nA. electrolytes\nB. protein\nC. sugar\nD. carbohydrates", "role": "user" }, { "content": "B. protein", "role": "assistant" } ]
[ { "content": "Johnson likes swimming in a small river near his house. But then his father goes to work in a big city and Johnson goes with his family. Their new house has a garden, but the garden is very small Johnson is not very happy. \"Is there a river near the house?\"He asks his father on the first morning...
[ { "content": "Some Advice on Traval NO.1. Forget Fashion !Always wear your most comfortable clothes when going on long journeys. NO.2. Traveling on trains and buses can be boring. So take a good book to read. NO.3. If you're going somewhere cold, remember your warm clothes. NO.4. Or, if you are going somewhere ...
[ { "content": "Sunday is more like Monday than it used to be. Places of business that used to keep daytime \"business hours\" are now open late into the night. And on the Internet, the hour of the day and the day of the week have become irrelevant . A half century ago in the United States, most people experienc...
[ { "content": "New Year's Eve is a time to celebrate and enter the new year with a smile on your face. This year, there're plenty of local activities for all ages and interests, so the smiles will come easily. BLUE CONCERT Blues band the Coyotes is playing at the Dance Barn,at 8 Barn View in Sudden Valley, The s...
[ { "content": "In the course of working my ways through school , I took many jobs I would rather forget . But none of these jobs was as dreadful as my job in an apple plant. The work was hard ; the pay was poor ; and, most of all , the working conditions were terrible. First of all , the job made huge demands ...
[ { "content": "Your youngest son or daughter has just graduated from high school, and soon he or she will trade his or her bedroom in your home for a college residence hall. You're starting to worry about the coming silence in your home and are wondering how you will fill the hours that you previously spent with...
[ { "content": "There are two types of twins; identical and non-identical twins. Identical twins are formed from a single egg in mother's body which divides to from two separate babies. Identical twins look the same, and are often dressed by their parents in clothes of the same colors. It is often difficult to te...
[ { "content": "Once a neighbour stole one of Washington's horses. Washington went with a police officer to the neighbour's farm to get the horse, but the neighbour refused to give the horse up; he claimed that it was his horse. Washington placed both of his hands over the eyes of the horse and said to the neig...
[ { "content": "BEIJING, Feb. 26 (China Daily) -- As the smog orange warning continues, tourist attractions in Beijing are experiencing a significant decline in visitor number. A new report launched by Beijing authorities on the morning of February 24 indicates that the concentration of PM 2.5 has risen, with n...
[ { "content": "ATLANTA, Georgia--- Alternative medicine --- including yoga, meditation, herbs and the Atkins diet ---appears to be growing in popularity in the United States, perhaps because of dissatisfaction with conventional care, the government said Thursday. More than a third of American adults used suc...
[ { "content": "When Bill is very young, he loves picture. His mother often draws some for him on old pieces of paper. She is very bad at drawing, but bill likes her pictures and always wants more. Then, when he is a little older, Bill's mother gives him some pencils and a drawing book, and he begins drawing pict...
[ { "content": "To Whom It May Concern: Your address was forwarded to us by How to Magazine.All of us here think The International Institute of Not Doing Much is the best organization in the world.You know how to avoid unnecessary activities! As a matter of fact, we closely followed the advice in your article.Fir...
[ { "content": "Whether you live in Seattle or the Sahara desert, the time has come to invest in a good raincoat or umbrella, a new study suggests. As global temperatures continue to rise, more \"extreme rain\" events--intense, cats-and-dogs downpours--can be expected, said thestudy, published Monday in the journ...
[ { "content": "Having a teenager at home can be a real headache. Many teenagers smoke, drink and even fight. They often do something dangerous. Earlier studies have shown that teenagers are more likely to make _ decisions than people from any other age group, including children and adults. Is it that teenagers...
[ { "content": "Chicco Red Bullet Balance Training Bike Price: $32.99 & FREE Shipping($49.99) Soft tires & Help the child gain balance. Recommended for ages 3+years. Seat Pets Car Seat Toy Price: $19.97 & FREE Shipping on orders over $35($19. 99) Seat Pets are seat belt attachments that provide comfort and suppor...
[ { "content": "Has a doctor ever given you a note to take to the chemist for some medicine? Are you able to read the note easily? Some doctors write clearly , but most doctors do not. Chemists have more chances to read doctors' notes, but sometimes doctors write so badly that even the chemist can't read them. O...
[ { "content": "A \"talking kitchen\" teaches students how to cook French dishes and speak French. Researchers at New Castle University have developed the French Digital Kitchen. Professors Paul Seedhouse and Patrick Olivier led the project. Professor Seedhouse says that it works like a satellite navigation syste...
[ { "content": "There are plenty of beauty schools throughout the country that can help you to start a career in cosmetology . Nowadays, young people may not be able to afford a four-year college. Students can look forward to attending a beauty school program which will only take a few months to complete and star...
[ { "content": "HONG KONG,Sept .12,2005-Hong Kong Disneyland,the 11th theme park of Walt Disney Co.,opened here on Monday morning.Chinese Vice President Zeng Qinghong,Donald T&-mg Yam-kuen,chief executive of Hong Kong-Special Administrative Region(HKSAR),and Tung Chee-hwa,attended the opening. The Hong Kong D...
[ { "content": "Life's coincidences can be good or bad, but they always surprise us. I moved to Anderson in 2004 from a small town in New York. One day I stopped at a red light and was behind a car with a license plate that read \"Pearl Harbor Survivor\". My father was a Pearl Harbor survivor, so I jumped out o...
[ { "content": "There once was a little boy who wanted to meet the king. He set off, walking towards the king's castle. After many years of walking, the king's castle came into his view. However, as the boy drew closer to the outside of the castle, the guards noticed him. \"Get out of here!\" ordered the guards. ...
[ { "content": "Smart home applications can share all kinds of helpful information with homeowners. There appears a new housing platform which can detect the stress on electricity -- and the stress on the heart. \"There is a growing population of elderly people, and there are statistics to show that more and more...
[ { "content": "What does mining change?\n\nChoices:\nA. temperatures\nB. biological environments\nC. water levels\nD. atmospheric pressures", "role": "user" }, { "content": "B. biological environments", "role": "assistant" } ]
[ { "content": "The burning of fossil fuels has added pollutants that contain sulfur atoms to the air. These pollutants have contributed to which of the following?\n\nChoices:\nA. drought\nB. acid rain\nC. tornadoes\nD. temperature inversions", "role": "user" }, { "content": "B. acid rain", "role"...
[ { "content": "This year some twenty-three hundred teen-agers (young people aged from 13-19) from all over the world will spend about ten months in U.S. homes . They will attend U. S. schools , meet U.S. teenagers , and form impressions of the real America . At the same time , about thirteen hundred American tee...
[ { "content": "China Daily Oct.11,2008-TheMinistry Of Health has called for more awareness from the public on the mental health of the young as part of efforts to mark World Mental Health Day which fell on Friday. More than 15 percent of Chinese youths have been found with mental problems and about 30 million yo...
[ { "content": "Spain is famous for its tomato festival, called La Tomatina. It happens in a small town Hanoi on the last Wednesday of August every year. During the festival there are all kinds of activities, but the most exciting part is the tomato fight. It takes place at the end of long celebration . You are ...
[ { "content": "Sir, Last Saturday I watched the TV coverage of the latest Grand Prix motor race and could not fail to notice how much advertising there was. In particular, the leading car (and the one that eventually won) was almost constantly on the screen; it was painted to look like a packet of well-known cig...
[ { "content": "Perfect Presents David is going to American to stay with his penfriend, Chris.David wants to take some presents with him. Chris lives in New York with his parents and his two sisters.We both love sports, especially (,)football and basketball. My mum thinks it is a good idea to take presents for a...
[ { "content": "My horse,Treasure,is my hero because she helped me discover how to relate to her.In the process,she \" fixed \" my relationship with my husband and my children. When I got her,she was 2 years old, _ . She was not going to accept any kind of instructions from me. In the interest of not getting myse...
[ { "content": "Reading to oneself is modern activity which was almost unknown to the learned in the early days of the history, while during the fifteenth century the term \"reading\" undoubtedly meant reading aloud. Only during the nineteenth century did silent reading become popular. One should be careful, howe...
[ { "content": "Education is another area where the presence of arts and crafts is more than welcome. If children realize the importance of art and creativity from a young age, they can grow up to be more confident, more creative, and definitely more mature. Schools are the breeding grounds for future painters an...
[ { "content": "John is a paper boy. He delivers newspapers to different houses in his street every day. He has about 80 customers . Half of his customers only take the newspapers on weekdays, and about half take the newspapers on weekdays and on Sundays. Two of John's customers only take the newspapers on Sunday...
[ { "content": "One day, a little boy comes into a shop and says to the shop worker, \"I want to buy twelve exercise books of 6 cents each and nine pencils of 10 cents each. How much is that altogether ?\" The shop worker writes these numbers down on a piece of paper and thinks for a minute. Then she says, \"1 do...
[ { "content": "How to look good in a school uniform? You can look great in your school uniform, if you follow these tips: (1) Make sure the uniform is the right size for you. You will need a pair of scissors , but please, don't cut anything until you measure where you want the uniform to reach on your body. I...
[ { "content": "Have you ever walked outside thinking it was one temperature but quickly discovered it felt colder? That is because of the \"wind chill\" effect. Wind chill is how cold people and animals feel when they are outside, not the actual temperature on the thermometer . It is based on how quickly your bo...
[ { "content": "When I was six years old, my mom told me that I could find anyone's number in the phone book. I used to look through the phone book for hours trying to find Michael Jordan's phone number. When I couldn't find it, I just dialed seven numbers. When someone answered, I'd ask, \"Is that Michael Jordan...
[ { "content": "Jim found a job in a shop two years ago. Mrs. White, the shopkeeper trusts the able young man and pays him more. He's happy and works harder. Once Jim knew a beautiful girl called Mabel at a friend's party. They danced for several times and the girl was deeply in love. But Mabel's parents didn't a...
[ { "content": "The witch wanted to stop making poisons in her big pot. She wanted to be a cook instead. She could make all sorts of treats, like blueberry sandwiches, orange pizzas, and grape pie. Her best treat she made was strawberry eggs. She wanted the people from town to invite her to parties. She wanted...
[ { "content": "When I was 11, I had an enemy, a girl who liked to point out my shortcomings . Week by week her list grew: I was very thin, I wasn't a good student, I talked too much, I was too proud, and so on. I tried to hear all this as long as I could. In the end, I became so angry that I ran to my father wit...
[ { "content": "Success by failure I had failed again. It was the day of the big marathon. I had decided three years ago to train for the half-marathon event and take home a medal. There I sat, in front of my TV, while I watched others cross the finish line. It was just another in a long string of failures. I h...
[ { "content": "St James's Palace has announced that while Miss Middleton will wear a wedding ring. Prince William has chosen not to. Rings are typically exchanged by couples during their wedding to represent commitment to each other. Does it matter if husbands don't wear a wedding ring? Prince William's father...
[ { "content": "Emotional intelligence, or EQ, is the ability to read and understand emotions in ourselves and others. It is said that emotional intelligence makes up 80 percent of one's success. Ever since the 1995 publication of US writer Daniel Goleman's best-seller, Emotional Intelligence: Why It Can Matter M...
[ { "content": "The relationship between humans and animals has always been complex. Some cultures have developed entire belief systems around favored animals. Even in cultures with less formal belief systems, connections between people and animals still lead to commonly accepted opinions about animals. These bel...
[ { "content": "KFC , one of the most famous fast-food chains, saw its reputation in China shaken because of \"quick chicken\". Recent years, KFC has ever shocked us more than once because of its food safety, which made itself in severe trust crisis. Now it greatly surprised us again owing to the poultry incident...
[ { "content": "Such chronic diseases as heart disease, stroke, cancer and lung disorders are the most leading causes of death in the world. Yet health experts say these conditions are often the most preventable. The World Health Organization (WHO) points out chronic diseases lead to about 17 million early deat...
[ { "content": "Every year we have many holidays, such as summer holidays. May Day and so on. How do you spend during these holidays? Do you like to travel during them ? Can you book holidays or make travel plans on line? Now let me tell you how to do it. First,you should look up the places that you want to visit...
[ { "content": "One reaction to all the concern about tropical deforestation is a blank stare that asks the question, \"Since I don't live there, what does it have to do with me?\" The answer is that your way of life, wherever you live in the world, is tied to the tropics in many ways. If you live in a house, wa...
[ { "content": "More than 50 music students of New Milford High School in New Jersey, US, got a letter from their headmaster. The letter said that the music department of the school was in big trouble. The students had to pass a test, or the department would be closed. The test came on Saturday. The nervous stu...
[ { "content": "Most Americans don't like to get advice from their family. When they need advice, they don't usually ask people they know. They often write letters to newspapers and magazines. And these newspapers and magazines can give advice on many different subjects such as family problems, language learning ...
[ { "content": "Everyone knows there are many English expressions about clothes. There is no need to keep it a secret, or to keep it under your hat. In fact, if I keep talking, soon enough you will start to think I am an old hat about this -- a real expert. Do not be fooled, though. My friends sometimes call me a...
[ { "content": "Years ago people could hardly accept the ideas of a woman's being a doctor. In order to get into medical school in 1847, Elizabeth Blackwell was asked to keep it a secret that she was a woman. This was contrary to her beliefs, and she refused to do it. After entering medical school, prefix = st1 /...
[ { "content": "Americans like to visit the national parks. In 1996, over 250,000,000 people visited areas which are managed by the National Park Service. Experts say that by 2012, 500,000,000 people per year will visit the parks. As a result, people are trying to think of ways to protect the parks from the crowd...
[ { "content": "Once upon a time, there was a poor man. One day, after working for hours, he had a rest under a tree in the middle of the field. Just then, he saw a terrible snake coming out of an anthill . The man thought that the snake might be the god of the field. He did not give it anything, so he could not ...
[ { "content": "He was 11 years old and went fishing every chance he got from the dock at his family's cabin on an island in the middle of a New Hampshire lake. On the day before the bass season opened, he and his father were fishing early in the evening, catching sunfish and perch with worms. Then he tied on a s...
[ { "content": "A heavier object\n\nChoices:\nA. requires less force to move\nB. requires minimal effort to move\nC. requires more muscle power to shift\nD. requires a light touch to move", "role": "user" }, { "content": "C. requires more muscle power to shift", "role": "assistant" } ]
[ { "content": "Children today spend less time outdoors than ever before and it may be harmful not only to their physical health, but also to their cognitive development. A year-long study, recently published in the Sciences, found that elementary school children who were exposed to more green space within or d...
[ { "content": "Nowadays, a cellphone service is available to everyone, everywhere. Probably thousands of people have already been using it, but I just discovered it, so I'm going to claim it and also name it: Fake Foning. The technology has been working well for me at the office, but there are infinite applicat...
[ { "content": "A Concussion happens when the brain is shaken, often in a car crash or a fall or a strike on; the head in sports.Concussions can be mild, but doctors may order a CT scan to look for a more serious injury.But a recent study warned that more children than necessary are being exposed to radiation t...
[ { "content": "Scientists working for a company are testing a new medicine that they think will help heal damaged tissue. In which part of the company are the scientists working?\n\nChoices:\nA. distribution\nB. mass marketing\nC. public relations\nD. research", "role": "user" }, { "content": "D. res...

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