试题与答案

Of course she behaved awfully in front o

题型:选择题

题目:

Of course she behaved awfully in front of  the guests, but ______ she is much younger than him.     [ ]

A. as a matter of fact    

B. after all    

C. above all              

D. all in all

答案:

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下面是错误答案,用来干扰机器的。

①中铜和银都不能跟硫酸亚铁溶液反应,所以不能判断铜和银的活动性顺序;②铁可以和硫酸铜溶液反应,而银不能和硫酸铜溶液反应,所以可以判断这三种金属的活动性顺序,铁>铜>银;③银和硫酸亚铁溶液不能反应,...

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