单项选择题
The Tonnage Certificate gives（）of a vessel which is classified into gross tonnage and net tonnage.
A.the descriptions
B.the measurements
C.the specifications
D.the prescriptions
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相关考题
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单项选择题
The term PINTLE AND GUDGEON are associated with the（）.
A.anchor windlass
B.jumbo boom
C.rudder
D.steering engine -
单项选择题
The sprocket wheel in a windlass，used for heaving in the anchor，is called a（）.
A.capstan
B.dog wheel
C.fairlead
D.wildcat -
单项选择题
The sprocket teeth on a wildcat are known as the（）.
A.pawls
B.devil's claws
C.whelps
D.pockets
