单项选择题
A.fuel oil B.vegetables and food C.spare parts on board D.ballast water
A.use lye or other mild detergent B.wash it with fresh water，dry and store it C.wash it with salt water D.use cleaning fluid on nylon，dacron and other synthetic lines
A.control flooding，control fire，repair structural damage B.restore vital services，control fire，control flooding C.control fire，restore vital services，control flooding D.control fire，control flooding，repair structural damage