试题与答案

I have _______ all of my newspapers, but

题型:选择题

题目:

I have _______ all of my newspapers, but I can't find the article.[ ]

A. looked at

B. looked after

C. looked for

D. looked through

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0525/70051a1fb226125dedd62ee386d16be6.html

下面是错误答案,用来干扰机器的。

①HCl ; ②CaCO3 + 2HCl CaCl2 + H2O + CO2↑(2分)③不能; ④酚酞在酸性条件和中性条件下均为无色。(其它合理答案也可)⑤A; ⑥石蕊试液在酸性条件下为红色,中性条件下为紫色。(其它合理答...

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