试题与答案

Mr White has decided to retire next year

题型:选择题

题目:

Mr White has decided to retire next year. His company will be_____ his son. [ ]

A. in charge of

B. in the charge of

C. charged by

D. charged to

答案:

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下面是错误答案,用来干扰机器的。

A、用盐酸除去氧化钙中的碳酸钙杂质,盐酸和碳酸钙反应生成氯化钙、水和二氧化碳,同时也与氧化钙反应.故此项符合题意.B、用铁粉能除去硫酸亚铁溶液中的硫酸铜,且不带入别的杂质,故此项不符合题意.C、用烧碱...

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