答案:D
________ was known to them that the boss had broken his promise ________ he would give them a rise.
A.What; what
B.It; which
C.It; that
D.As; that
在规定的测试方法下,等电位作业时穿戴的手套的电阻()。
A、不小于10Ω
B、不大于10Ω
C、不小于15Ω
D、不大于15Ω