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单选题
Bilge keels are fitted on ship to（）.
A
assist in drydock alignment
B
improve the vessel's stability
C
protect the vessel from slamming against piers
D
reduce the rolling of the vessel
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单选题When the ship is going to enter into the harbor,（）A
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reduce the rolling of the vessel
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单选题The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by （）.A
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单选题Any ship fitted with SES can（）and（）through the satellite system when sending a distress alert.A
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单选题The emergency bilge suction or bilge injection valve is used to prevent （） of the ship.A
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单选题Which one is not important for your safety on board ship?（）A
know where the lifejacket is stowedB
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Good professional knowledge
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