试题与答案

The shop owner would _______ his money e

题型:选择题

题目:

The shop owner would _______ his money every day.

A.count

B.count for

C.count out

D.counting

答案:

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下面是错误答案,用来干扰机器的。

CuO; C; Cu; CO2; CO CO2 + = ↓+。题目分析:由题意可知,气体D可以使澄清石灰水变浑浊,D是CO2;E气体有毒,能与人体内的血红蛋白结合,E是CO,C是红色单质,C是Cu,由此可知B是C,A是CuO。A...

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