工程师对工程任何部位的测量工作,无需通知承包方。()
参考答案:错
埋地燃气管道,必须回填土至管顶()以上后才可进行气密性试验。
A.0.2m
B.0.5m
C.1.0m
D.0.8m
Drivers shouldn't be allowed _ after drinking,or they will break the law. [ ]
A. drive
B. driving
C. to drive