A、A.nitrogen
B、B.oxygen
C、C.carbon dioxide
D、D.water vapor
更多“Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure（）.”相关的问题
A、Many ships have two derricks at each hatch. B、Many ships have two winches at each hatch. C、Many ships have two derricks and two winches at each hatch. D、Many ships have two derricks and two winches at each hatch cover.
A、One ring life buoy B、One ring life buoy on each side of the ship C、Three ring life buoys D、Two ring life buoys on each side of the ship
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
A、between ship stations and shore-based communication networks B、concern the management and operation of ships C、may have an impact of the safety on ships D、all of A, B, C
A、A.shipping jurisdictions for each fulfillment center B、B.shipping codes for each set of shipping charges to be applied to products C、C.shipping methods for each carrier and service offered by the carrier D、D.shipping zones for each geographical region where goods will be shipped
A、Which survival craft was used in the drill B、The number of each lifeboat not lowered during each drill C、Only the number of each motor propelled lifeboat that is lowered D、The length of time an oar propelled lifeboat is rowed
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