单项选择题
If a vessel lists to port，the center of buoyancy will（）.
A.move to port B.move to starboard C.move directly down D.stay in the same position
单项选择题 Horizontal transverse motion of a vessel is known as（）.
单项选择题 Horizontal fore or aft motion of a vessel is known as（）.
单项选择题 Heave is motion along the（）.
