单项选择题
A.at B.to C.for D.in
A.The fioot/tons needed to trim the vessel by 1 inch B.The foot/tons needed to trim the vessel by 1 foot C.The moments needed to trim the vessel by 1 centimeter D.The amount of vessel will trim when loading 100 tons 100 feet from the tipping center
A.The amount of buoyancy measured in foot/tons B.The vertical distance above the waterline inside the hull C.The volune of space that is filled with water D.The volume of intact space above the waterline