A.decreases as temperature increases B.increases with the temperature C.is not affected by temperature D.may increase or decrease as the temperature rises
A.combustible liquid B.flammable gas C.flammable liquid D.flammable solid
A.nitrogen B.oxygen C.carbon dioxide D.water vapor
A.over an electrically heated platinum filament B.where it is mixed with nitrogen C.where it is ignited by a sparking device D.where its specific gravity is measured
A.that B.which C.who D.these
A.they generate heat B.they emit hydrogen C.of the toxic fumes they emit D.they recharge faster in a well ventilated space
A.controls the amount of gasoline to the engine B.shuts off the gasoline supply at the tank C.is used if the gasoline tank leaks D.All of the above
A.odor B.color C.pressure D.density
A.keel B.center of buoyancy C.tipping center D.amidships section
A.CCS marine surveyor B.certified marine chemist C.port engineer D.MSA marine inspector
微信扫一扫关注公众号后联系客服
微信扫码免费搜题
