你可能感興趣的試題

The scuppers should be plugged （）.

A.only if fixed containment is not used
B.only if portable containment is not used
C.only if fixed containment drains are open
D.whenever the vessel is being bunkered

單項(xiàng)選擇題

Small oil spills on deck can be prevented from contaminating any waters by （）.

A.plugging all scuppers and drains
B.placing floating booms around the ship
C.regularly emptying all drip pans
D.thoroughly draining all bunkering hoses