单项选择题

For a general cargo ship, is not the necessary certificate/document that the PSCO will examine（）

A.Survey Report File
B.Minimum Safe Manning document
C.Certificates of Competency
D.International Oil Pollution Prevention

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单项选择题
The guide shoes are secured to the crosshead by means of（）

A.through bolts
B.end chock bolts
C.side chock bolts
D.tap-bolts
单项选择题
Which one of the following repair will cost the least cost?（）

A.Routine docking repair
B.Voyage repair
C.Damage repair
D.Conversion
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