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为了解和掌握学生的生长发育状况 ,我们将 1985年与2 0 0 0年海口市学生体质监测资料中的身高指标进行了分析 ,现报道如下。1 对象与方法1.1 对象 选取海口市东南西北中有代表性的 10所学校 (中小学校各 5所 ) ,再随机抽取每个年龄组 (7~ 18岁 )男女生各12 0名 ,共 2 880名
In order to understand and grasp the growth and development of students, we have analyzed the height indicators in 1985 and 2000 physical fitness monitoring data of students in Haikou City, are reported as follows. 1 Subjects and methods 1.1 Subjects Select 10 representative schools (5 for primary and secondary schools) in Haikou City, north-southwest of China, and then randomly select 12 male and female students of each age group (7-18 years) name