单项选择题
GM cannot be used as an indicator of stability at all angles of inclination because（）.
A.M is not fixed at large angles B.there is no M at large angles C.G is not fixed at large angles D.there is no G at large angles
单项选择题 For small angles of inclination，if the KG were equal to the KM，then the vessel would have（）.
单项选择题 For a given displacement，the righting arm has its maximum value when（）.
单项选择题 Buoyancy is a measure of the ship’s（）.
