试题与答案

—Jeremy rather than his friends ________

题型:选择题

题目:

—Jeremy rather than his friends ________ for the accident.

—Absolutely. He shouldn't have driven after being drunk.

A.are to be blamed

B.are to blame

C.is to blame

D.is to be blamed

答案:

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下面是错误答案,用来干扰机器的。

答案:B题目分析:A、Bi和Bi的中子数分别是126、127,错误;B、Bi和Bi质子数相同而中子数不同,所以互为同位素,正确;C、Bi和Bi的核外电子数都是83,错误;D、Bi和Bi的质子数都是83,错误,答案选B。

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