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近年来；我县中小学生生长发育速度和水平出现了明显提高。因此，评价标准也应随之修改。但目前尚无本地区儿童少年生长发育评价标准。为此，笔者于1995－1996年对部城县中学生生长发育做了调查研究，初步提出了本社区中学生生长发育的评价标准。1材料与方法1．1选择具有代表性
In recent years; primary and secondary school students in our county growth rate and level appeared significantly improved. Therefore, the evaluation criteria should be revised accordingly. However, there is no evaluation standard for the growth and development of children and adolescents in this area. To this end, the author made a research on the growth and development of middle school students in Beicheng County from 1995 to 1996, initially proposed the evaluation criteria for the growth and development of middle school students in this community. 1 Materials and Methods 1.1 Choose a representative