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Read the article and select the best answer. Article: A meteorite flew fast across the sky and exploded over central Russia on Friday, raining fireballs over a vast area and causing a shock wave that smashed windows, damaged buildings and injured l,200 people. People heading to work in Chelyabinsk heard what sounded like an explosion, saw a bright light and then felt the shock wave. According to Russian space agency Roscosmos, the fireball, travelling at a speed of 30km per second, had burnt very brightly across the horizon, leaving a long white trail that could be seen as far as 200km away. Car alarms went off, thousands of windows shattered and mobile phone networks were disrupted. "I was driving to work, it was quite dark, but it suddenly became as bright as if it were day," said Viktor Prokofiev, 36, a resident of Yekaterinburg in the Urals Mountains. "I felt like I was blinded by headlights." The meteorite, which weighed about 20 tons and may have been made of iron, entered Earth's atmosphere and broke apart 30-50km above ground, according to Russia's Academy of Sciences. The energy released when it entered the Earth's atmosphere was about several thousand tons, the academy said, the power of a small atomic weapon exploding. No deaths were reported, but the Emergencies Ministry said 20,000 rescue and clean-up workers were sent to the region after President Vladimir Putin told Emergencies Minister Vladimir Puchkov to ease the disruption and help the victims. The Interior Ministry said about l,200 people had been injured, at least 200 of them children, and most from broken pieces of glass."While events this big are rare, an impact that could cause damage and death could happen every century or so. Unfortunately there is absolutely nothing we can do to stop impacts." Question: According to the text, the meteorite explosion caused _ . Options: A: some deaths B: road accidents C: communication problems D: building collapse
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C

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Read the article and select the best answer. Article: Canadian short story writer Alice Munro won the Nobel Prize for Literature. Eighty-two-year-old Munro is only the 13th woman to win the 112-year-old prize. Munro didn't publish her first collection of short stories until she was 37 years old, but her stories have always been well-received. Lots of her stories share similar themes and characters, but each story has its own twists and turns. Even though she's won Canada's most famous literary award, the Giller Prize, twice, winning the Nobel Prize for Literature is the cherry on top of Munro's career. "It brings this incredible recognition, both of her and her career, and of the dedication to the short story," said one person. Along with the well-respected title comes 1.3 million dollars.Munro said everything was "so surprising and wonderful" and that she was "dazed by all the attention and affection that has been coming my way." Munro knew she was in the running-she was named the second-most likely person to win this year's prize, after Haruki Murakami of Japan-but she never thought that she would win. Munro's win also represents the long way Canadian writers have come."When I began writing there was a very small community of Canadian writers and little attention was paid by the world.Now Canadian writers are read, admired and respected around the globe," Munro said on Thursday. She is technically not the first Canadian to win the Nobel Prize for Literature, but many like to think that she is.In 1976 Saul Bellow, who was born in Quebec but moved to Chicago when he was still a child, won the prize.Even though he was born in Canada, he is mostly considered to be an American writer. "This is a win for us all.Canadians, by our very nature, are not very nationalistic," said Geoffrey Taylor."But things like this suddenly make you want to find a flag." She wasn't sure if she would keep writing if she won the prize, saying that it would be "nice to go out with a bang.But this may change my mind." Question: What is the feature of Munro's stories? Options: A: They have their own complicated contents. B: They have similar story backgrounds. C: They have specific themes for children. D: They have the same characters in each book.
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A

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Read the article and select the best answer. Article: In the Netherlands,cycling isn't seen as eccrfriendly exercise; it's part of everyday life, as it's people's top choice to school and work. There are more bicycles than residents in the Netherlands. In cities like Amsterdam and The Hague, up to 70 percent of all journeys are made by bike. So how did cycling become such a popular means of transportation in the European country? In the 1970s, the Dutch government began to improve its cycling infrastructure due to both a social movement demanding safer cycling condition for children and the oil crisis in the Middle East, when oil producing countries stopped their exports to Western Europe. To make cycling safer and more appealing, the Dutch have built the widest cycling net- work in the world. The country has over 40,000 kilometers of bicycle lanes and paths,which are clearly marked. They have smooth surfaces,separate signs and lights for those on two wheels. The lanes are wide enough to allow side-by-side cycling and passing. In many cities the bike lanes are completely segregated from motorized traffic. And in many traffic situations cyclists are given priority over drivers. Sometimes, where space is limited and both must share, you can see signs showing an image of a cyclist with a car behind accompanied by the words "Bike Street:Cars are guests". As young people aren't allowed to drive alone until they are 18,cycling offers Dutch teen- agers an alternative form of freedom. The government also makes cycling training lessons a compulsory part of the Dutch school curriculum . Bike parking facilities are ubiquitous in the country. Cyclists are accommodated in the way motorists are elsewhere. Take Groningen, a city in the northeastern part of the Netherlands,for example. The city's central train station has underground parking for 10,000 bikes. Question: Which of the following made the government improve the cycling infrastructure? Options: A: A large number of bikes. B: Hope for healthy life style. C: People's preference to bikes. D: Children's safety demand and lack of oil.
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D