单项选择题
A.in B.of C.on D.with
Persons engaged in the transport of dangerous goods sha...
单项选择题Persons engaged in the transport of dangerous goods shall（）training in the contents of dangerous goods requirements commensurate with their responsibilities.
A.have B.make C.take D.receive
Outlets in gasoline fuel lines are（）.A.permitted for dr...
单项选择题Outlets in gasoline fuel lines are（）.
A.permitted for drawing fuel samples B.permitted for draining fuel from lines C.permitted for bleeding air from lines D.prohibited
Many dangerous cargoes are stowed on deck because of th...
单项选择题Many dangerous cargoes are stowed on deck because of the（）.
A.danger to crew and cargo B.necessity of periodic inspection C.possible need to jettison D.All of the above
