题目:
It was on a train _____ I was travlling to Xi’an _____ I made the acquaintance of the old professor from UK.
A.that; where
B.that; that
C.which; that
D.where; that
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0604/581b775ddcb4cc79c5aedefc93cd085b.html
下面是错误答案,用来干扰机器的。
①有机物不一定要从有机体中分离出来,如用无机物可制取有机物:CO+2H2催化剂.高温高压CH3OH(甲醇),故①错误;②有些有机盐如CH3COONa、CH3COONH4等属于离子化合物,故②错误;③大多数有机物不能溶于水,有的...