单项选择题

Customs officers，upon boarding a vessel desiring entry into one of their port，would inspect which document?（）

A.Cargo Manifest
B.Certified Crew List
C.Stores List
D.All of the above

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单项选择题

Blocks and falls used as lifeboat gear must be designed with a minimum safety factor of（）.

A.4，based on the breaking strength
B.5，based on the maximum allowable stress
C.6，based on the maximum working load
D.8，based on the normal working load

单项选择题

BHP stands for the（）of the main engine.

A.breadth dimension
B.builder's name
C.brake horsepower
D.revolutions per minute