福建三類人員考試福建三類人員專職安全員C證考試單項(xiàng)選擇題每日一練(2019.05.10)

A.50mm
B.100mm
C.150mm
D.200mm

A.1/200
B.1/250
C.1/300
D.1/400

A.150
B.120
C.110
D.100

A.2.0m
B.1.8m
C.1.5m
D.2.5m

A.25mm×80mm
B.20mm×60mm
C.25mm×50mm
D.20mm×70mm