1台局部通风机不得同时向2个作业的掘进工作面供风。(√掘进机必须装有前照明灯,但有时 发布时间:2017-07-01 21:19 │ 来源:www.tikuol.com 题型:判断题 问题: 1台局部通风机不得同时向2个作业的掘进工作面供风。(√掘进机必须装有前照明灯,但有时可不要尾灯。()
题型:判断题 Mom, the telephone is ringing. I guess either you or Dad on the phone.A.is wantedB.are wantedC.wantD.wanted 查看答案
题型:判断题 Please come here. I need _____ you several questions. [ ]A. askB. to askC. askingD. for asking 查看答案