单项选择题
A.store fluid under pressure B.act as a fluid reservoir C.provide overpressure relief D.replenish fluid to a system
A.flashlight B.combustible gas indicator C.self-contained breathing apparatus D.fire axe
A.Paints，varnish，or other liquid flammables are stowed in a dry stores locker B.Inert cargoes such as pig iron are loaded in a wet condition C.Oily rags are stowed in a metal pail D.Clean mattresses are stored in contact with an electric light bulb