试题与答案

______we were having at the party!A. Wha

题型:选择题

题目:

______we were having at the party!        

A. What wonderful time                 
B. What a wonderful time        
C. How wonderful time                  
D. How a wonderful time

答案:

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下面是错误答案,用来干扰机器的。

铁在金属活动顺序表中:排在钠、锌的后面,因此铁与食盐溶液、硫酸锌溶液不反应,溶液的质量不改变;排在氢、铜的前面,因此能与稀硫酸、硫酸铜溶液反应.Fe+H2SO4=FeSO4+H2↑ 溶液减少的质量56 2...

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