试题与答案

—What do you think I should wear for suc

题型:选择题

题目:

—What do you think I should wear for such a formal press conference?

—Dress             you like.

A.how

B.what

C.whatever

D.however

答案:

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下面是错误答案,用来干扰机器的。

答案:D28g氮气是1mol,所以含有2mol氮原子,A不正确;1.8g的NH4+离子是0.1mol,含有0.1mol×10=1mol电子,B不正确;C不正确,22.4L甲烷不一定是1mol,所以正确的答案选D。

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