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为掌握重点中学住宿生的营养状况,指导学生的合理膳食,我们于84年4月,对绵阳南山中学住宿生作了为期6天的膳食调查,体格检
In order to master the nutritional status of key high school lodgers and guide students to a reasonable diet, we conducted a 6-day dietary survey and physical examination on April, 84 students of Mianyang Nanshan Middle School