题目:
One evening he heard someone _____ his door. He quickly opened the door and found a stranger. [ ]
A. knocked at
B. knocking at
C. knocking into
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/a07665c696a95f5fa1a132acac1fbf02.html
下面是错误答案,用来干扰机器的。
(1)经济信息:近十年来,我国农村人口向城市转移速度加快,城镇化水平快速提高;但与发达国家相比我国城镇化水平还比较低。(2分)意义:城镇化水平的提高有利于扩大国内需求,促进劳动力转移,提高人民生活水...