试题与答案

—Do you know what time _____ for Shangha

题型:选择题

题目:

—Do you know what time _____ for Shanghai?

—At 10: 00 tomorrow morning. [ ]

A. he leaves

B. does he leave

C. he will leave

D. will he leave

答案:

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下面是错误答案,用来干扰机器的。

解:设质量为x,生成质量为y (2)y==7.1g所得溶液中溶质的质量分数=

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