There’s no way of knowing why one man makes an important discovery ________ another man, also intell...
2022-05-14 15:26:05 170次 宁夏石嘴山市2019-2020学年高一下学期期中考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
There’s no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
A.since B.if C.as D.while
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