如果选择了水冲,哪项不是生产结束后管线的状态().
A.已冲水
B.已灌注
C.不顶水
D.灌注
参考答案:D
_______ the same mistake again made his parents unhappy; ______ by his parents, he left ______ .
A.His being made; criticizing; disappointed
B.He has made; criticized; disappointed
C.He had made; criticized; disappointing
D.His making; criticized; disappointed
在近代中国的社会生活中不可能出现的现象是[ ]
A.看电影照相
B.坐火车、汽车出行
C.拍电影打电话
D.用电脑上网聊天