单项选择题
A.bulkhead B.bulwark C.bitumen D.waterline
The function of （）is to prevent sailors from overboardi...
单项选择题The function of （）is to prevent sailors from overboarding.
A.bulwark B.bulkhead C.bitumen D.waterline
The （）has four blades.A.windlassB.steerC.propellerD.hel...
单项选择题The （）has four blades.
A.windlass B.steer C.propeller D.helm
The main body of a vessel is the （）.A.hullB.superstruct...
单项选择题The main body of a vessel is the （）.
A.hull B.superstructure C.engine room D.poop
