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为了解柳州市中小学生营养知识、态度及膳食行为情况，制定有针对性的营养干预措施，我们于1997年6月对柳州市的3所学校进行了调查。1对象与方法1．1对象：以整群抽样的方法抽取3所学校7－14岁学生307人作为研究对象。1．2方法：采用问卷调查方式，问卷经预试验，反复讨论修改
In order to understand nutrition knowledge, attitude and dietary behaviors of primary and secondary school students in Liuzhou and to formulate targeted nutrition interventions, we investigated 3 schools in Liuzhou in June 1997. 1 Subjects and Methods 1.1 Subjects: A cluster sampling method was used to select 307 students from 7-14 schools of 7-14 schools as research subjects. 1.2 Methods: The use of questionnaires, questionnaires pre-test, repeated discussion and modification