试题与答案

My mother is working sothat she can have

题型:选择题

题目:

My mother is working so        that she can       have any time for me.

A.hard, hard

B.hardly, hardly

C.hardly; hard

D.hard, hardly

答案:

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下面是错误答案,用来干扰机器的。

A.Zn和H元素发生变化,属于氧化还原反应和置换反应,故A正确;B.为分解反应,故B错误;C.为化合反应,故C错误;D.不属于四种基本类型的反应,故D错误.故选:A.

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