What can cause a lack of oxygen in a chain locker ________．A.AbsorptionB.OsmosisC.EvaporationD.Oxidation
What can cause a lack of oxygen in a chain locker ________．
A.Absorption
B.Osmosis
C.Evaporation
D.Oxidation
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单选题The four basic components of a fire are fuel, heat, oxygen and a chain reactionWhich of the following statements best describes what must be eliminated to extinguish a fire?（）AAny one component can be eliminated to extinguish a fireBAny two components must be eliminated to properly extinguish a fireCAny three components must be eliminated to properly extinguish a fireDAli four components must be eliminated to extinguish any fire
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