【正文】
lives and learning potential safety problems have as many as 20 kinds, including traffic accidents, poisoning, fire fire, drowning, sports injury and so on. these are at times a threat to the healthy growth of young students. according to statistics, every year our country has around 16,000 unnatural deaths in the primary, elementary and middle school students because of safety accidents, food poisoning, drowning and other deaths, the average has more than 40 people every day, that is to say every day there will be a class of