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單項(xiàng)選擇題

Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.

A.It causes minimal damage
B.It is safer for personnel
C.It is cheaper
D.It is most effective on a per unit basis

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單項(xiàng)選擇題

A ROUND THROUGH THE VESSEL CARRIED OUT BY A CREW MEMBER OF THE WATCH AT CERTAIN INTERVALS SO THAT AN OUTBREAK OF FIRE MAY BE PROMPTLY DETECTED defines（）.

A.Fire patrol
B.Fire control
C.Smoke detection
D.Fire drill

單項(xiàng)選擇題

Ordnance exercise is（）.

A.Naval firing practice
B.Fire drills
C.Crew drills
D.Survival drills

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