【简答题】Fire needs three things to burn: oxygen, fuel, and heat. Fuels can be wood, tinder, coal, or any other substance that will easily oxidize. Therefore, a fire can be stopped in three different ways, by ...
【单选题】Fire needs three things to burn: oxygen, fuel, and heat. Fuels can be wood, tinder, coal, or any other substance that will easily oxidize. Therefore, a fire can be stopped in three different ways, by ...