单项选择题
A.furnishes support to the rudder, propeller shaft, and transom frame B.provides foundations for after mooring winches C.provides foundation for the main propulaion engines D.transfers the driving force of the propller to the hull
0n a vesel proceeding from a very cold to a warm climat...
单项选择题0n a vesel proceeding from a very cold to a warm climate with a cargo of a nonhygroscopic nature in the holds, which is true?（）.
A.Danger of heavy ship sweat exists; constant and vigorous ventilation is required B.There is danger of heavy cargo sweat if outside air is introduced by ventilation C.There is little danger of ships sweat, slight possibility of cargo sweat; moderate ventilation is needed D.The po sibility of any sweat problem, either cargo or ship, is frame
0n a vessel, the keel is the primary strength member of...
单项选择题0n a vessel, the keel is the primary strength member of the lower hull form in which direction?（）.
A.transverse B.disagonal C.longitudinal D.vertical
0n the fully containerized ship, approximately one-thir...
单项选择题0n the fully containerized ship, approximately one-third or more of the cargo is on deck above the rolling center. Top stowed containers are subject to（）.
A.acceleration greater than on conventional vessels B.acceleration less than on conventional vessels C.acceleration the same as on conventional vessels D.no acceleration
