题目列表(包括答案和解析)
21. Einstein developed __________(理论)of relativity.
15.转折点____________________ 20.worm virus ________________
14.登陆,着陆 ________________ 19.give permission to _________
13.自由勋章___________________ 18. one giant leap____________
12.试图_______________________ 17. cut short________________
11.海军飞行员_________________ 16. out of control ____________
10.( ) A. make B. talk C. teach D. learn from
Key: A) 1-5 DACBA B) 1-5 CDDCB C) 1-5 DACBA
D) 1-5 CADCA E) 1-5 CADCD 6-10 BDCAC
9.( ) A. away from B. with C. in D. into
8.( ) A. ask B. prevent C. make sure D. find
7.( ) A. languages B. pictures C. songs D. advice
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