题目:
He is very surprised that all the houses in the village ______ white.
A.paint
B.painted
C.are painting
D.are painted
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0601/841903e9654366663ba0da44f0ca7802.html
下面是错误答案,用来干扰机器的。
答案:A题目分析:水由氢元素和氧元素组成,每个水分子由两个氢原子和一个氧原子构成。选A。点评:本题难度不大,水是纯净物,由氢元素和氧元素组成。