单项选择题
In the absence of external forces, the center of gravity of a floating vessel is located directly above the（）.
A.metacenter B.amidships C.center of floatation D.geometric center of the displaced volume
单项选择题 In the stowage of deck cargo, cribbing is（）.
单项选择题 In vessel construction, a greater number of watertight bulkheads results in（）.
单项选择题 In vessel construction. Beam brackets are triangular plates than join the deck beam to a（）.
