单项选择题
When a wind force causes a floating ship to heel to a static angle，the（）.
A.centers of buoyancy and gravity are in the same vertical line B.righting moment equals the wind-heeling moment C.downflooding point is below water D.deck-edge immersion occurs
单项选择题 When a vessel is stationary and in a hogging condition，the main deck is under（）.
单项选择题 What would have the greatest affect on a vessel’s longitudinal strength? （）
单项选择题 What term indicates a curvature of the decks in a longitudinal direction?（）
