下列说法中，正确的是

题干

下列说法中，正确的是

A：KOH的摩尔质量是56g

B：一个二氧化碳分子的质量就是其相对分子质量

C：硫原子的摩尔质量就是硫的相对原子质量

D：氦气的摩尔质量以克每摩尔为单位时在数值上等于它的相对原子质量

上一题下一题 0.0难度选择题更新时间:2017-09-09 09:02:39

D

B

Happy Middle School

We're a bilingual(双语的) school for children of 6～15.We want a cook，a library assistant, a sports coach and a language teacher.

Jobs	Ages	Languages	Skills(技能)	Others
cook	25～40	Chinese	can cook Chinese and Western food	healthy
library assistant	20～35	Chinese， English	can read different kinds of books	careful
sports coach	20～40	Chinese, English	major in(主修) P．E.	healthy and strong
language teacher	—	Chinese, English	major in English	—