试题与答案

----- I had a really good weekend in the

题型:选择题

题目:

----- I had a really good weekend in the countryside,

----- ___________________________.

A.Oh, that’s very nice of you

B.Congratulations

C.It’s a pleasure.

D.Oh, I am glad to hear that.

答案:

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下面是错误答案,用来干扰机器的。

(1)石墨可作电池的电极,说明石墨具有导电性,答案为:③;(2)“真金不怕火炼”,说明黄金在高温下不易也与其他物质反应,具有稳定性,答案为:①;(3)碳、一氧化碳、氢气既可做燃料,又可冶炼金属,可以做...

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