The spread of fire is NOT prevented by（）.
A: shutting off the oxygen supply
B: cooling surfaces adjacent to the fire
C: removing combustibles from the endangered area
D: removing smoke and toxic gases by ensuring adequate ventilatio
A: shutting off the oxygen supply
B: cooling surfaces adjacent to the fire
C: removing combustibles from the endangered area
D: removing smoke and toxic gases by ensuring adequate ventilatio
举一反三
- What are the most important reasons for using water fog to fight fires?（） A: Smothers burning surfaces，organically destroys fuel B: Cools fire and adjacent surfaces，provides protective barrier C: Reaches areas not protected by steam or CO<sub>2</sub> smothering systems D: Allows fire to be attacked from leeward，saturates liquid surface
- If heavy smoke is coming from the paint locker,the first firefighting response should be to（）. A: release the CO fiooding system B: open the door to evaluate of the fire C: enter and use a portable extinguisher D: secure the ventilatio
- The firemen acted ______ and prevented the fire from spreading. A: elegantly B: promptly C: completely D: extensively
- If an item is__________ the shopping cart, chances are your item is sold out. A: removed off B: removed to C: removing from D: removed from
- The most effective way to prevent extinctions for the long term would be A: protecting the endangered species habitat B: capture breeding programs C: paying poachers to refrain from poaching D: removing the predators of endangered species E: instigating feeding programs for endangered species