單項(xiàng)選擇題

Roll-on／roll-off ships are equipped with（）.

A.cargo elevators
B.conveyor belts
C.ramps
D.derricks and winches for cargo handling

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單項(xiàng)選擇題

Precautionary measures must be taken to（）safety of the stevedores，cargo and the ship.

A.insure
B.ensure
C.assure
D.assume

單項(xiàng)選擇題

Please stow the drums（）ends.

A.at
B.in
C.on
D.by