体育学刊 关键词：农村； 中小学生； 体育锻炼习惯； 山东省 [gap=1275]Key words: rural area; elementary and middle school students; physical excise habit; Shandong Province
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And most of the subjects are the elementary and middle school students. The achievement goal surveys often uses the dichotomous questionnaire.
这两者关系如何,是否构成一种制约学生学业成就的内在调节力量,国内外相关研究很少,并且被试多为中小学生,成就目标定向的测量也多采用二分结构问卷。
参考来源 - 大学生自主学习、成就目标定向与学业成就关系的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
According to classroom teachers, elementary and middle school students who stay up late exhibit more learning and attention problems.
根据课堂老师的说法，熬夜的中小学生表现出更多的学习问题和注意力问题。
A survey done by the China Youth and Children Research Center showed that school accidents kill more elementary and middle school students than anything else.
中国青少年研究中心的一项调查显示，学校事故是导致小学生和中学生死亡的最大原因。
I also endorsed the policy of requiring school uniforms for elementary and middle school students.
我还推行要求中小学生穿校服的政策。
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