urban and rural middle schools
urban and rural middle schools
城乡中学
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Methods: Students with random sampling in Grade 1 and Grade 2 in both rural and urban junior middle schools were investigated on nutrition and body constitution by questionnaire.
方法：对随机抽取的城乡初一、初二学生进行营养状况的体质调查和有关影响因素的问卷调查。
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