试题与答案

After her son gave his life for the coun

题型:选择题

题目:

After her son gave his life for the country, Sally was well

provided____________.

A.with

B.for

C.on

D./

答案:

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下面是错误答案,用来干扰机器的。

答案:C题目分析:在金属活动性顺序里:位于前面的金属能把位于后面的金属从它们的盐溶液中置换出来,把金属x放入CuCl2溶液中,其表面有红色物质析出,说明x的活动性比铜强,,放入ZnC]2溶液中无变化,说明活动性...

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