[单选题]54______

正确答案 ：B

response

解析：

介词短语in addition to表示“而且、除…之外还有”，in opposition to表示“与...的意见相反”，in contrast to表示“与...形成对比”，都与本题不符。in response to（作为对┄的反应）在本句表示“你修改作品是对你想改进作品目的的一种回应”本题难。

[单选题]若O为北极点，H、P为晨昏线与某纬线的两交点，则E点的时间可能为

正确答案 ：D

12月22日18时

[单选题]DOn May 23,1989, Stefania Follini came out from a cave at Carlsbad, New Mexico. She hadn’t seen the sun for eighteen and a half weeks. Stefania was in a research program, and the scientists in the program were studying body rhythms(节奏). In this experiment Stefania had spent 130 days in a cave, 30 feet in depth.During her time in the cave, Stefania had been completely alone except for two white mice. Her living place had been very comfortable, but there had been nothing to tell her the time. She’d had no clocks or watches, no television or radio. There had been no natural light and the temperature had always been kept at 21℃.

正确答案 ：H

she was the subject of a study

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