A.10000倍 B.12000倍 C.12500倍
為了保證生產(chǎn)經(jīng)營單位不出或少出事故。
A.100m B.120m C.125m
A.>1.6Mpa B.>1.2Mpa C.≤1.6Mpa D.≤1.2Mpa