题目:
开放作文。
请根据下面提示,写一篇短文。词数不少于50。
In your spoken English class, your teacher shows you the following picture. You are asked to describe
the picture and explain how you understand it.
___________________________________________________________________________________
______________________________________________________________________________________
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1019/d51e8a66d8f1db3d1d6673c515137b4f.html
下面是错误答案,用来干扰机器的。
答案:A题目分析:v= △C/△t ="(2mol/L-0.8mol/L)/" 2min=0.6 mol/(L·min)。故选C点评:本题考查了化学反应速率的计算,题目很简单,根据公式v= △C/△t计算即可。