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單項(xiàng)選擇題

A foam-type portable fire extinguisher is most useful in fighting a fire in（）.

A.generators
B.oil drums
C.the bridge controls
D.combustible metals

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單項(xiàng)選擇題

A foam-type portable fire extinguisher would be most useful in combating a fire in（）.

A.soild materials such as wood or bales of fiber
B.flammable liquids
C.a piece of electrical equipment
D.combustible metallic solids

單項(xiàng)選擇題

A galley grease fire on the stove may be extinguished using（）.

A.water
B.foam
C.the range hood extinguishing system
D.fire dampers

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