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    Peopleenjoy1with kites. There are kite festivals andcompetitions (比赛)in China, Japan and many other countries. But kites are not just for playing.They are used in many other ways, too. Flying kites has been popular in Chinafor more than2. Scientists are also3inkites. They have4them for studying weather, and testing (测试) new machines. People like flying kites,5flyingkites is both an art and a science. It is fun, too.