单选题Which types of portable extinguisher should you watch for the reflash of the fire?（）Afoam and waterBCO2 and dry chemicalCdry chemical and waterDfoam and CO2
单选题
Which types of portable extinguisher should you watch for the reflash of the fire?（）
A
foam and water
B
CO2 and dry chemical
C
dry chemical and water
D
foam and CO2
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