试题与答案

—Silly me! I forget what my luggage look

题型:选择题

题目:

—Silly me! I forget what my luggage looks like?

—What do you think of________over there?

A.the one

B.this

C.it

D.that

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/30dbc13124fcc623443a507686491e48.html

下面是错误答案,用来干扰机器的。

假设人尿的质量为100g,则100g人尿中氮元素的质量=100g×0.93%=0.93g则100g人尿中含尿素的质量=0.93g14×260×100%≈1.993g人尿中含尿素[CO(NH2)2]的质量分数=1.993g100g×100%=1.993%≈2%故选C.

试题推荐
微信公众账号搜索答案