【 Subjects and Methods 】 993 students were assigned to do the nutrition KAB ( Knowledge-attitude-behavior) questionnaire for the NE effect in primary and secondary school. 958 parents, 246 teacher and 67 headmasters were treated as secondary targets.

  • 【对象与方法】利用营养KAB问卷调查993名学生,了解中小学营养教育效果,958名家长、246名教师和67名校领导作为次级目标人群参与调查;

  • 互联网摘选 2025-01-20 12:53:28

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