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随着社会经济的发展，人民生活水平不断提高，人们对饮食的要求也发生了量和质的变化，因而，儿童青少年的营养状况有了明显的改变。抽取四所学校来进行营养评价与分析，现将情况分述如下。1资料与方法抽取的四所学校其中三所小学、一所中学共计lop人，除有一所学校较远外，其
With the development of the society and economy, people’s living standards are constantly improving and people’s demands for food and drink have also undergone quantitative and qualitative changes. As a result, the nutritional status of children and adolescents has been significantly changed. Taking four schools for nutrition evaluation and analysis, the situation is as follows. 1 data and methods of four schools drawn three of them primary schools, a total of lop total secondary school, in addition to a school farther, its