单项选择题
The upward pressure of displaced water is called（）.
A.buoyancy
B.deadweight
C.draft
D.freeboard
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单项选择题
The total weight of cargo，fuel，water，stores，passengers and crew，and their effects，that a ship can carry，is the（）.
A.bale cubic
B.deadweight
C.gross tonnage
D.loaded displacement -
单项选择题
The term that indicates how many tons of cargo a vessel can carry is（）.
A.bale cubic
B.deadweight
C.gross tonnage
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单项选择题
The term length of a vessel in International Regulations for Preventing Collision at Sea 1972 means（）.
A.the length between perpendiculars
B.the registered length
C.the length overall
D.the length of waterplane on summer draft
