單項(xiàng)選擇題You hear the general alarm bells and ships whistle sound for over 10 secondsTraditionally, this is the signal for （）.

A.abandon ship
B.dismissal from drills
C.fire and emergency
D.lower lifeboats


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1.單項(xiàng)選擇題The abandon ship signal sounded by the vessels whistle is （）.

A.6 short blasts and 1 long blast
B.long blast mare than 6 short blasts
C.more than 6 short blasts and 1 long blast
D.1 long blast of at least 10 seconds

2.單項(xiàng)選擇題If you have to abandon ship and enter a life-raft, your main course of action should be （）.

A.remain in the vicinity of the vessel
B.head for the closest land
C.head for the closest sea-lanes
D.get a majority opinion

5.單項(xiàng)選擇題If the buoyant force on a ships hull is equal to or greater than the displacement tonnage, the ship will （）.

A.require ballast added to only the port side tanks
B.be down by the head
C.sink
D.float