单项选择题
A.combustible liquid
B.flammable liquid
C.flammable solid
D.poison B
单项选择题 Corrosive liquids and acids should have what kind of label? ()
单项选择题 COMPATIBILITY OF GOODS states().
单项选择题 Certain dangerous goods are required “to be stowed in a mechanically ventilated space”. When such goods are carried in a closed Ro/Ro cargo space or a special category space,this space should().