单项选择题
A.dry B.fragile C.smelling D.dangerous
Heavy cargo might break （）cargo, so it can’t be stowed ...
单项选择题Heavy cargo might break （）cargo, so it can’t be stowed on top of it.
A.light B.bulk C.dangerous D.wet
Cargo for （）No.4 is to be loaded first.A.roomB.cabinC.h...
单项选择题Cargo for （）No.4 is to be loaded first.
A.room B.cabin C.hold D.winch
Bolts, nuts, split pins, hinges, wheels and stoppers sh...
单项选择题Bolts, nuts, split pins, hinges, wheels and stoppers should be frequently （）.
A.checked B.closed C.removed D.cleared
