单项选择题
Bulkheads which form part of the tanks on a vessel are stiffened to withstand（）.
A.deck loads from above B.dynamic forces while afloat C.hydrostatic pressure D.over-pressurization
单项选择题 Between the side frames on a vessel，support for the deck beams is provided by（）.
单项选择题 An upright vessel has negative GM. GM becomes positive at the angle of loll because the（）.
单项选择题 An inland oil barge must have equipment available to remove an on-deck oil spill of at least（）.
