單項選擇題

Securing cargo by running timbers from an upper support down to the cargo，either vertically or at an angle，is called（）.

A.braces
B.dunnage
C.shores
D.toms

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單項選擇題

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

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

單項選擇題

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

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