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新一轮中考复习备考周期正式开始， Accidents are today‘s most frequent killers so far as children are concerned. And accidents cripple a great many children that are not killed. Accidents occur to children in all sorts of places at home, on the street, at school, on public playgrounds, at places to swim, and on camping trips. There are now many more chances for accidents than there used to be. Automobiles, power tools, electric wiring, and easy ways of starting fire have brought new dangers. Most accidents are caused by carelessness. A great deal of effort has been done to make work in mills and factories safer. Safety is everyone‘s business. (责任编辑：admin) |