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【单选题】
1 Computer people talk a lot about the need for other people to become 'computer- literate', in other words, to learn to understand computers and what makes them tick. Not all experts agree, however, that this is a good idea. 2 One pioneer, in particular, who disagrees is David Tebbutt, the founder of Computertown UK. Although many people see this as a successful attempt to bring people closer to the computer, David does not see it that way. He says that Computertown UK was formed for just the opposite reason, to bring computers to the people and make them 'people-literate'. 3 David first got the idea when he visited one of America's best-known computer figure, Bob Albrecht, in the small university town of Palo Alto in Northern California. Albrecht had started a project called Computertown USA in the local library, and the local children used to call round every Wednesday to borrow some time on the computers there, instead of borrowing library books. Albrecht was always on hand to answer any questions and to help the children discover about computers in their own way. 4 Over here, in Britain, Computertowns have taken off in a big way, and there are now about 40 scattered over the country. David Tebbutt thinks they are most successful when tied to a computer club. He insists there is a vast and important difference between the two, although they complement each other. The clubs cater for the enthusiasts, with some computer knowledge already, who get together and eventually form. an expert computer group. This frightens away non-experts, who are happier going to Computertowns where there are computers available for them to experiment on, with experts available to encourage them and answer any questions they are not told what to do, they find out. 5 David Tebbutt finds it interesting to see the two different approaches working side by side. The computer experts have to learn not to tell people about computers, but have to be able to explain the answers to the questions that people really want to know. In some Computertowns there are question sessions, rather like radio phone-ins, where the experts listen to a lot of questions and then try to work out some structure to answer them. People are not having to learn computer jargons, but the experts are having to translate computer mysteries into easily understood terms the computers are becoming 'people - literate'. According to David Tebbutt, the purpose of Computertown UK is to______.
A.
train people to understand how computers work.
B.
make more computers available to people.
C.
enable more people to fix computers themselves.
D.
help people find out more about computers.
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【单选题】有关核酸的变性与复性的正确叙述为
A.
热变性后DNA经缓慢冷却后可复性
B.
不同的单链DNA,在合适温度下都可复性
C.
热变性的DNA迅速降温过程也称作退火
D.
热变性DNA迅速冷却后即可相互结合
【单选题】The prisoner ____ to escape but failed.
A.
arrested
B.
attacked
C.
attended
D.
attempted
【单选题】What' s the end of the story?
A.
The prisoner stole the policeman' s notebook and gave it to Mr. Green in return.
B.
The prisoner was caught.
C.
The prisoner robbed Mr. Green.
D.
Mr. Green sent the prisoner to the police station.
【简答题】The prisoner of war wished to be _________ Ten years later, he _________ free and regained his _________.
【单选题】有关核酸的变性与复性的正确叙述为
A.
热变性后 DNA 经缓慢冷却后可复性
B.
热变性的 DNA 迅速降温过程也称作退火
C.
复性的最佳温度为 25 ℃
D.
不同的单链 DNA ,在合适温度下都可复性
E.
热变性 DNA 迅速冷却后即可相互结合
【简答题】It is thought that the prisoner escaped by climbing over the wall. (think)
【单选题】有关核酸的变性与复性的正确叙述为
A.
热变性后相同的DNA经缓慢冷却后可复性
B.
不同的DNA分子变性后,在合适温度下都可复性
C.
热变性的DNA迅速降温过程中也称作退火
D.
复性的最佳温度为25℃
E.
热变性DNA迅速冷却后即可相互结合
【判断题】热力环流这一内容分别运用了观察与实验、分析与综合、分类与比较、归纳与演绎等方法。
A.
正确
B.
错误
【简答题】The prisoner was()of his civil liberty for three yThe prisoner was ________________ of hiscivil liberty for three years. A) discharged                                           B) derived C) deprived ...
【单选题】For many years the poor woman was a virtual prisoner in her own home.
A.
a real prisoner
B.
a prisoner by law
C.
an unreal prisoner
D.
in effect a prisoner
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