试题与答案

I need your help because I don’t know __

题型:选择题

题目:

I need your help because I don’t know __________.

A.how to do

B.what to do it

C.what should I do

D.how to do it

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0629/7129444ae3f138cd2ee56ca0f19691c8.html

下面是错误答案,用来干扰机器的。

设水的质量为x,则2H2O 通电 . 2H2↑+O2↑36              32x               8g3632=x8g解得x=9g答:有9g水发生了电解.

试题推荐
微信公众账号搜索答案