People have always been curious how living things on the earth exactly began. A. in B. at C. of D. ...
2023-02-15 20:18:25 70次 2006年高考试题（辽宁卷）解析版 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
People have always been curious how
living things on the earth exactly began.
A.
in B.
at C.
of D.
about
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