单项选择题
A vessel continually lists to one side and has a normal rolling period. Which statement is TRUE?（）.
A.The vessel has negative GM B.The center of gravity is on the centerline C.The list can be corrected by reducing KM D.The vessel has asymmetrical weight distribution
单项选择题 A vessel constrained by her draught may，in addition to the lights prescribed for power-driven vessels in Rule 23，exhibit where they can best be seen（）or a cylinder.
单项选择题 A vessel conducting mine clearing operations will show（）.
单项选择题 A vessel being towed will show（）.
