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问题 选择题

— It _____ Yang Liwei about 21 hours _____ around the earth 14 times in the spaceship.

— How great he is! [ ]

A. spent, moving

B. took, traveling

C. took, to move

D. spent, to travel

答案

答案：C

填空题

短文填空。

     New York, London,Paris and other big cities are exciting places to l     1     in.There are many i     2     things to see and to do. You can go to different k__3   of museums and see plays and films. You can also go to s     4    to buy things from all o      5      the world.

     But there are many problems in big c      6     ,too. There are to many people move to cities to find

jobs,and to study at good schools. But sometimes these people can't f      7       work in a good place to

live i      8      Also,too many people in a small place make it hard to keep the cities safe and clean. So

before peoplehave to move t_    9      big cities,they Should think a      10      the problems of living there.
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单项选择题 A2型题

某患者，在北京某院生殖中心就诊，医师叫患者收集自己丈夫的精液，由医师注入到患者的生殖道，以达到受孕目的，此法属于（）

A.人工授精

B.体外受精

C.克隆技术

D.无性生殖

E.代孕母亲
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