单项选择题
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
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单项选择题
Ordnance exercise is（）.
A.Naval firing practice
B.Fire drills
C.Crew drills
D.Survival drills -
单项选择题
I’m on fire and have dangerous cargo on board.The most emergent assistance in this case would be（）.
A.life boat
B.helicopter
C.fire-fighting
D.medicine
