单项选择题
Increasing free surfaces has the effect of raising the（）.
A.uncorrected KG B.virtual height of the center of gravity C.metacenter D.metacentric height
单项选择题 Increasing the number of slack liquid tanks has the effect of raising the（）.
单项选择题 Initial stability is indicated by（）.
单项选择题 Inclination of the vessel to port side or starboard side defines（）.
