单项选择题
A.time B.lever arm C.displacement D.angle of inclination
The center of buoyancy and the metacenter are in the li...
单项选择题The center of buoyancy and the metacenter are in the line of action of the buoyant force（）.
A.only when there is positive stability B.only when there is negative stability C.only when there is neutral stability D.at all times
The amount of freeboard which a ship possesses has a tr...
单项选择题The amount of freeboard which a ship possesses has a tremendous effect on its（）.
A.initial stability B.free surface C.stability at large angles of inclination D.permeability
Load line regulations are designed to insure that a ves...
单项选择题Load line regulations are designed to insure that a vessel has adequate structural strength and sufficient（）.
A.lifesaving equipment B.stability C.mooring tension D.riser tension
