单项选择题
A sheepshank is used to（）.
A.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line
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A preventer guy（）.
A.prevents anyone from working the cargo at unauthorized times
B.is a safety measure in case one of the outboard guys parts
C.is a longshoreman who watches for accidents
D.is the same as a blacksmith -
单项选择题
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A.lanyard
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A new coil of nylon line should be opened by（）.
A.pulling the end up through the eye of the coil
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