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单选题
The grab rail of a metal lifeboat is normally located（）.
A
along the turn of the bilge
B
along each side of the keel
C
near the top of the gunwale
D
at the bow and at the stern
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考题
单选题Frapping lines are fitted to lifeboat davits to（）.A
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secure the lifeboat in the davits when in the stowed positionB
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reduce the swinging of the lifeboat as it is being lowered from the embarkation levelB
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考题
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