液化石油气罐区运行工液化石油气罐区运行工(初级)单项选择题每日一练(2018.11.27)

A.85%
B.90%
C.95%
D.100%

A.30m²
B.50m²
C.70m²
D.80m²

A.上
B.中
C.下
D.以上都不对

A.0.80
B.0.85
C.0.90
D.0.95

A.30min
B.1h
C.2h
D.4h