单项选择题
If the vertical center of gravity (VCG) of a ship rises 1.7 feet，the righting arm (GZ) for the various angles of inclination will（）.
A.decrease B.increase C.remain unchanged D.be changed by the amount of GG' x cosine of the angle
单项选择题 From（）the information concerning the tons per inch or centimeter immersion of a vessel shall be usually found.
单项选择题 For a floating vessel，the result of subtracting KG from KM is the（）.
单项选择题 For a floating vessel，the center of flotation is the point in the waterplane（）.
