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

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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