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【简答题】
阅读理解。 One of the founding fathers of the internet has predicted the end of traditional television. Vint Serf, who helped to build the internet while working as a researcher in America, said that television was approaching its 'iPod moment.' In the same way that people now download their favorite music onto their iPods, he said that viewers would soon be downloading most of their favorite programmers onto their computers. '85 percent of all video we watch is pre-recorded, so you can set your system to download it at any time,' said Mr. Cerf, who is now the vice-president of Goggle. 'You're still going to need live television for certain things--like news, sporting events and emergencies- but increasingly it will be almost like iPod, where you download content to look at later.' Although television-on-demand has not yet become a main activity in the UK, the BBC, 1TV and Channel 4 have all invested a lot of money in technology which Mr. Cerf think will enable viewers to watch their favorite shows on their computers. However, some critics (批评家) have warned that the Internet will collapse (崩溃) if millions of people try to download programmers at the same time. Over the next four years, scientists think the number of videos watched over the Internet will double, with people moving from short chips to hour-long programmes. Broadband companies claim that the service will cause 'traffic jams', which will cost millions of pounds to solve. Mr. Cerf dismissed these warnings, saying that critics had predicted 20 years ago that the net would collapse when people all around the world started to use it at the same time, 'We're far from exhausting (用 尽) the capacity,' he said. 'I want every one of the six billion people in the planet to be able to connect to the Internet.' 1. Vint Cerf is all the following EXCEPT that _____. A. a researcher in the United States B. the vice-president of Goggle C. one of the founders of the Internet D. a manager of a broadband company 2. Which of the following is NOT something Vint Cerf has predicted? A. Traditional television will soon have its iPod moment. B. The number of videos watched over the Internet will double. C. Viewers will be able to download TV programmers onto their iPods. D. Viewers will be able to watch their favorite TV shows on the Internet. 3. According to the passage, people can always do all the following EXCEPT _____. A. watch short clips over the Internet B. download live TV over the Internet C. download per-recorded videos over the Internet D. listen to their favorite music on their computers 4. Some critics are now predicting _____. A. the Internet will collapse if millions of people use it at the same time B. people all over the world will be able to connect to the Internet C. the Internet will crash if too many people download TV programmes at the same time D. the videos people watch over the Internet 5. This passage mainly tells us _____. A. a Goggle expert is predicting the end of traditional television B. the Internet will never be used to download people's favourite shows C. the Internet will become more popular D. something about Vint Cerf
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excessive fuel penetration
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prolonged injection lag
C.
reduced ignition lag
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prolonged ignition lag
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A.
a shortened ignition delay period
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a lean fuel/air mixture
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excess fuel in the combustion chamber
D.
rapid vaporization of injected fuel droplets
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Research limitations.
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Summary of the discussion.
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Suggestions for further research.
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Research findings and significance.
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气的温煦作用
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气的推动作用
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气的固摄作用
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气的气化作用
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nssAb
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HBeAb
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抗一HBc—IgG
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抗一HBc—IgM
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错误
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全开
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