再以访谈和调查问卷的形式了解学校部分男女生的数学学习现况，学习心理状况等；
Secondly, the author himself has a study on girl students' math study and their mental condition in the form of interview and questionnaire.
方法采用现况调查方法，整群抽取某幼儿师范学校的919名学生进行最近1年内危害健康行为及其相关因素的问卷调查。
Methods a questionnaire survey of health risk behaviors in last year was conducted on 919 random samples among children's normal school students by cross-sectional study.
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