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2016-12-19View Original

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This post was last edited by fight3558586 on 2016-12-19 10:49. In the event of a fire involving flammable gases, electrical equipment, instruments, or valuable documents and archives, which extinguishing agent should be used? A) Carbon dioxide fire extinguisher; B dry powder fire extinguisher ; C foam fire extinguisher ; A carbon dioxide fire extinguisher

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