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"liu cheng xue sheng shui bu zu 9 xiao shi " geng shi yi ju jing gao
Author(s): 
Pages: 10
Year: Issue:  11
Journal: Hunan Education

Abstract: 据中国青少年研究中心日前发布的统计数据显示,2005年至2015年,近六成中小学生睡眠不足国家规定的9小时.究其原因,学业压力是影响儿童睡眠的主要因素.(澎湃新闻网) 近六成中小学生睡眠不足9小时,看到这个数据,笔者的心情变得异常沉重.
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