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 “reaching” course is one in which the wind（）.

A.comes directly over the bow
B.comes directly over the stern
C.comes over an area extending from broad on the bow to the quarter
D.has no effect on the vessel

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A “Mediterranean moor” should be used when（）.

A.when anchoring in the Mediterranean
B.when docking stern to a berth
C.when docking bow to a berth
D.when anchoring in a strong current

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A “loose” tow may cause all of the following EXCEPT（）.

A.loss of maneuverability
B.lines to part
C.damage to the towing vessel and tow
D.a saving in the transit time