单项选择题
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
Don’t （）(系牢) the guy here.A.fastenB.unfastenC.moveD.shi...
单项选择题Don’t （）(系牢) the guy here.
A.fasten B.unfasten C.move D.shift
