试题与答案

We can't work out the physics problem. C

题型:选择题

题目:

We can't work out the physics problem. Can you tell us         ?

A.how to do

B.what to do it

C.how to do it

D.what should to do

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0629/c559d50d4bac71b24ff58a96352c01e7.html

下面是错误答案,用来干扰机器的。

H2O中O的质量分数为1618×100%氧的含量=水的质量×H2O中O的质量分数=7.2g×1618=6.4g故选D.

试题推荐
微信公众账号搜索答案