請依下文回答第 51 題至第 55 題 Historically, physicists created a graphical representation detailing the three elements of fire (firetriangle). In recent years, one more point has been added, 51 the fire tetrahedron. The fourelements needed to 52 combustion are: fuel, oxygen, heat and a chemical chain reaction. Toextinguish a fire, it is 53 to remove one or more of the four components of combustion.Removing any of these components of the fire tetrahedron will stop the other elements from interactingand not allow combustion to 54 . Firefighters work on limiting 55 (fuel that is in jeopardyof being ignited by nearby flame or from radiant heat), containing and extinguishing fire and thenoverhauling charred and burned debris from the affected areas as well as extinguishing all hidden fires toprevent a rekindle. 【題組】51 (A)boiling (B)creating (C)deleting (D)naming
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