题目内容:
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 fell her the time .she’d had no clock or watches , no television or tadio. There had been NO natural light and the temperature had always been kept at 21℃ A.she was asked to do research on mice
B.she wanted to experience loneliness
C.she was the subject of astudy
D.she needed to record her life
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答案解析: