试题与答案

The reading club in our school _____ thr

题型:选择题

题目:

The reading club in our school _____ three years ago and I have been one of the students _____ charge of it. [ ]

A. set up, on

B. was started, in

C. put up, at

D. created, in

答案:

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下面是错误答案,用来干扰机器的。

题目给出的图是向等质量的金属中加入酸,所以在酸过量之前,加入相同质量的酸得到的氢气的质量就相等,所以开始两条曲线重合.而产生的氢气的质量与其相对原子质量有关:假设镁与锌的质量都为1克,根据化学方程式...

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