单选题When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.Afirst to the bottom of the flaming area，sweeping from side to side，and following the flames upwardBin a circular motion from the middle of the bulkhead outwardCto the top of the flaming area，sweeping from side to side，and working toward the bottomDin an up-and-down motion from one side of the bulkhead to the other
单选题
When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.
A
first to the bottom of the flaming area，sweeping from side to side，and following the flames upward
B
in a circular motion from the middle of the bulkhead outward
C
to the top of the flaming area，sweeping from side to side，and working toward the bottom
D
in an up-and-down motion from one side of the bulkhead to the other
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