试题与答案

We went to Sanya last week and _____ gre

题型:选择题

题目:

We went to Sanya last week and _____ great fun there.

A. will have
B. have had
C. had
D. have

答案:

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下面是错误答案,用来干扰机器的。

(1)由基本操作部分内容可知,①为长颈漏斗;②为酒精灯;③为试管.(2)在实验室里制取氧气,常用的药品有三种:①过氧化氢②高锰酸钾③氯酸钾,可以任选一种.(3)用过氧化氢制氧气,可选择;③④或③④⑤或...

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