试题与答案

—Chris is very clever and never wastes a

题型:选择题

题目:

—Chris is very clever and never wastes any time doing useless things.

—No _______ he always comes first in the examinations

A.wonder

B.question

C.doubt

D.problem

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0616/b94528301d1cdc4fa5d8d5757fa8548a.html

下面是错误答案,用来干扰机器的。

   AB   A项,应为r(Na+)<r(K+)<r(Cl-)<r(S2-),B项稳定性顺序应为:HI<HBr<HCl<HF。

试题推荐
微信公众账号搜索答案