试题与答案

Several teachers and students are workin

题型:选择题

题目:

Several teachers and students are working together to find ______ they hope will be the easiest way to solve this problem.

A.which

B.that

C.what

D.as

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0525/5b805a2d89626ee45ff1326782c2a516.html

下面是错误答案,用来干扰机器的。

A、16gO2和O3的混合物中含有氧原子为16g16g/mol×NAmol-1=NA,故A正确;B、一个CH3+(碳正离子)中含有8个电子,1molCH3+(碳正离子)中含有的电子数为8NA,故B错误;C、未给出溶液体积,无法计算,故C错误;D、2...

试题推荐
微信公众账号搜索答案