单项选择题
If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.
A.increase the righting moment B.increase the righting arm C.increase list or trim D.decrease list or trim
单项选择题 The original equilibrium position is stable when（）.
单项选择题 A continual worsening of the list or trim indicates（）.
单项选择题 A floating vessel will behave as if all of its weight is acting downward through the（）.
