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單項(xiàng)選擇題

You hear the general alarm and ship’s whistle sound for over 10 seconds. Traditionally，this is the signal for（）.

A.abandon ship
B.dismissal from fire and emergency stations
C.fire and emergency
D.man overboard

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單項(xiàng)選擇題

Is extra power available（）emergency while maneuvering?

A.for
B.in
C.during
D.to

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