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單項(xiàng)選擇題

（） must know the location as well as the operation of the life-saving and fire-fighting appliances.

A. All officers
B. All engineers
C. All the crew
D. All sailors

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單項(xiàng)選擇題

（）should be saved first in an accident.

A. The ship
B. The cargo on board
C. The persons on board
D. The bridge

單項(xiàng)選擇題

The emergency alarm is sounded on （）according to master’s order.

A.VHF
B.broadcast
C.radio
D.sextant

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