单项选择题
A.ebb tide
B.flood tide
C.spring tide
D.slack water
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)().
单项选择题 On a semisubmersible ship,reserve buoyancy is increased by the presence of void spaces above the waterline in the().