4. The author was required to submit an () of about 200 words together with his research paper. A. edition B. editorial C. article D. abstract ...

24. I went along thinking of nothing (), only looking at things around me, A. in particular B. in harmony C. in doubt D. in brief ...

19. If you don’t like to swim, you () as well stay at home. A. should B. may C. can D. would ...

14. This is what you should bear in mind: Don’t () a salary increase before you actually get it. A. hang on B. draw on C. wait on D. count on ...

9. Tomorrow the mayor is to () a group of Canadian businessmen on a tour of the city. A. coordinate B. cooperate C. accompany D. associate ...

4. Many in the credit industry expect that credit cards will eventually () paper money for almost every purchase. A. exchange B. reduce C. replace D. trade ...

5. It is said that much of their success can be ___ to the help of Dr Wilson-- an expert in that field. A. credited B. given C. driven D. awarded ...

5. 被誉为中国的航空之父的是（ ）。 A. 钱学森 B. 孙家栋 C. 冯如 D. 钱三强 ...

2. 被誉为中国航天之父的科学家是（ ）。 A. 钱三强 B. 孙家栋 C. 王永志 D. 钱学森 ...

1. 20世纪60年代，苏联航天员加加林乘坐（ ）飞船进入太空，人类实现了遨游太空的伟大理想。 A. 东方1号 B. 东方红号 C. 神舟号 D. 萤火号 ...