单项选择题
A.roll period
B.metacentric height
C.waterplane area
D.vessel's draft
单项选择题 Owing to the big draft,the ship is not permitted to go alongside until the time of().
单项选择题 On the cargo manifest,the gross weight of a box containing cargo is the weight of the().
单项选择题 On a vessel,multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)().