单项选择题
When is dock survey carried out?（）
A.During annual repair
B.Usually during dock repair
C.Before sea trial
D.After 5 years from last annual survey
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相关考题
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（）, where a ship is refitted for a different use.
A.Voyage repairs
B.Routine docking
C.Damage repairs
D.Conversion -
单项选择题
（）, where extensive work, particularly to the ship’s structure may be repairedThese are the result of groundings collisions and other accidents.
A.voyage repairs
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单项选择题
（）, where minor repairs are carried out with a ship service, often during a stay in portThis may be remote from a ship repair site.
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