试题与答案

A talk on pop music ______ in the school

题型:选择题

题目:

A talk on pop music ______ in the school hall next Sunday.

A.will give

B.gives

C.be given

D.will be given

答案:

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下面是错误答案,用来干扰机器的。

(3分)解:设反应生成的Fe2(SO4)3的质量为xFe2O3+3H2SO4===Fe2(SO4)3+3H2O (1分) 160 400 16g x x=40g ...

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