单项选择题
A. hold lights B. cargo lights C. cargo lanterns D. hatch lamps
The（）(非包装货) is loaded and discharged by belt conveyer.A...
单项选择题The（）(非包装货) is loaded and discharged by belt conveyer.
A. non-packed cargo B. packed cargo C. cased cargo D. inboard cargo
This is a（）（折叠）type hatch cover.A.foldingB.rollingC.sid...
单项选择题This is a（）（折叠）type hatch cover.
A.folding B.rolling C.side-rolling D.unfolding
Sailors also keep （）（舷梯）watch.A.deckB.bridgeC.gangwayD....
单项选择题Sailors also keep （）（舷梯）watch.
A.deck B.bridge C.gangway D.anchorage
