单项选择题
A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center
单项选择题 （）is the tendency of a vessel to return to its original position after it is displaced therefrom.
单项选择题 The tendency of a vessel to return to its original trim after being inclined by an external force is（）.
单项选择题 The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is（）.