What works under one set of conditions at one time must work under the same conditions at other times.

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问题 What works under one set of conditions at one time must work under the same conditions at other times.

选项

答案在一定时间一定条件下成立的事实,在其他时间只要条件相同也应成立。

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本试题收录于: 英语题库普高专升本分类
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