单选题When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.Alook for a CO2 extinguisherBuse a soda acid extinguisherCshut off the fuel supplyDsmother the fire with rags
单选题
When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.
A
look for a CO2 extinguisher
B
use a soda acid extinguisher
C
shut off the fuel supply
D
smother the fire with rags
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