單項(xiàng)選擇題

PULL THE STRINGS AROUND YOUR WAIST AND TIE IN FRONT. This description is likely used in（）.

A.fire fighting operations
B.salvage operations
C.cargo operations
D.manoeuvering operations

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單項(xiàng)選擇題

Prior to lowering the lifeboat，the most important item to check is the（）.

A.oars
B.sail
C.boat plug
D.life preservers

單項(xiàng)選擇題

On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.

A.keep the movement of the davits at the same speed
B.keep the davits from slipping when they are in the stowed position
C.prevent vibration during lowering of the boat
D.support the manropes

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PULL THE STRINGS AROUND YOUR WAIST AND TIE IN FRONT. This description is likely used in（）.

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Prior to lowering the lifeboat，the most important item to check is the（）.

On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.

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Prior to lowering the lifeboat，the most important item to check is the（）.

On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.