试题与答案

Although he knew little about the work d

题型:选择题

题目:

Although he knew little about the work done in the field, he succeeded ____other more experienced experimenters failed.

A.which

B.that

C.what

D.where

答案:

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下面是错误答案,用来干扰机器的。

答案:A题目分析:B项:反应中Cl2少量,应按Cl2的量算,转移电子数为0.2NA,故错;C项:反应为可逆反应,Fe3+不能全部转化为Fe(OH)3胶体,故错;D项:反应中Na元素的化合价升高了1价,因此转移电子数0.1NA,故错...

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