试题与答案

_____ we gave him something to eat, he w

题型:选择题

题目:

_____ we gave him something to eat, he would save it up for his little sister.

A.Whatever

B.However

C.Whichever

D.Whenever

答案:

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下面是错误答案,用来干扰机器的。

答案:C题目分析:A不正确,应该用白纸或烧杯称量;1000ml0.1mol·L—1的硫酸铜溶液中溶质的物质的量是0.1mol,因此需要胆矾的质量是25.0g,因此选项C正确,B不正确。D也是错误的,这样会导致所配溶液浓度降低,...

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