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为了解目前我市中小学生的营养状况，我们于1996年4－5月份对市区2831名中小学生进行了营养状况调查，现将结果分析如下。1对象与方法1．1对象随机选择城市中小学校各1所，农村中小学校各1所，共计283名学生其中城市学生1423名，农村学生1408名；男生1527名，女生1304名；中学
In order to understand the current nutritional status of primary and secondary school students in our city, we conducted a survey on the nutritional status of 2831 primary and secondary school students in the urban area in April-May 1996, and the results are as follows. 1 Subjects and Methods 1.1 Subjects One randomly selected urban primary and secondary schools and one rural primary and secondary schools respectively, with a total of 283 students, of whom 1423 are city students and 1408 rural students; 1,527 boys and 1304 girls; middle schools