2011年中国人民大学考博英语真题

16. They took _______ measures to prevent poisonous gases from escaping.

A. fruitful

B. beneficial

C. valid

D. effective

17. With the help of a metal detector, they discovered that wreckage lay _______ over a 2,000-square-feet area, often buried beneath sand and seaweed.

A. scattered

B. separated

C. dispersed

D. distributed

18. It was his wife’s encouragement that had _______ his through the bad times.

A. delivered

B. relieved

C. sent

D. brought

19. The distance from the Earth to the spacecraft is often determined very accurately

from the time _______ between two radio signals.

A. interaction

B. alternative

C. interference

D. interval

20. Finding himself trapped in the Death Valley, he had a sudden feeling of _______.

A. despair

B. desperate

C. frightened

D. dreadful
小编推荐：

历年中国人民大学考博英语真题汇总

>>点击注册会员，享更多英语考试相关资料

素材来源：网络