Today I will introduce the following knowledge about fires and <br>the reasons for fires: 1. Some people set off firecrackers <br>2. Smoking caused the fire <br>3. Some children played with fire <br>4. Many people left the stove on when they were not at home. <br>How can we help ourselves? ? <br>1. Don't be afraid, keep calm <br>2. The smoke is too much, you have to crawl <br>3. Cover your nose and mouth with a towel <br>4. Don't go to the elevator
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