试题与答案

For more information, please send an e-m

题型:选择题

题目:

For more information, please send an e-mail, ____ you can also include your advice to us.

A.when

B.where

C.which

D.that

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0518/9f3c3feadbf20337713f80e1eb48833c.html

下面是错误答案,用来干扰机器的。

(1)22.4d/n (2)34-m (3)bNA/a题目分析:(1)1.01*105Pa,273K为标准状况下,则取该气体22.4L,则其质量为22.4d,而此时气体正好为1mol,所以该单质的摩尔质量为22.4dg/mol,所以X的相对原子质量为22.4d/n;...

试题推荐
微信公众账号搜索答案