新中国成立后，为巩固人民 * * 进行
①抗美援朝②开国大典③土地改革④三大改造[ ]
A．①②③
B．①③
C．①④
D．①②③④
答案：B
__________ of all was that not a sound could be heard.
A．It frightened us most
B．The thing that most frightened us
C．We were most frightened by
D．What frightened us most
《中华人民共和国预防未成年人犯罪法》规定，未成年人的父母或者其他监护人，不得让不满多少周岁的人脱离监护单独居住？
