单项选择题
A.material B.planks C.mats D.dunnage
I think you’d better use the （）(岸吊).A. derrickB. heavy ...
单项选择题I think you’d better use the （）(岸吊).
A. derrick B. heavy derrick C. shore crane D. floating crane
Please help me （）(解开) the guy.A.fastenB.unfastenC.moveD...
单项选择题Please help me （）(解开) the guy.
A.fasten B.unfasten C.move D.shift
Please fix some（）（货灯）.A. hold lightsB. cargo lightsC. c...
单项选择题Please fix some（）（货灯）.
A. hold lights B. cargo lights C. cargo lanterns D. hatch lamps
