Methods The survey of prevalence of dental caries in group aged 12 and 15 years in Anhui province was conducted using the non-proportional, stratified, cluster sampling method.
方法对安徽省四县市的12岁及15岁儿童的龋病发病情况进行抽样调查，采用分层、不等比、多阶段整群抽样的方法。
Methods To survey 203 poor students and 262 non-poor students by questionnaire sample in the match way, and analysis data by social science statistics software.
方法采用对偶取样方法对203名贫困生和262名非贫困生的社会支持和自我价值感进行了问卷调查，用社会科学统计软件进行数据统计。
Methods The method of stratified cluster samping was used to survey 181 music professional college students and 183 non-music professional college students with EPQ-RSC.
方法采用分层整群抽样的方法对音乐专业181名、非音乐专业183名大学生进行艾森克人格问卷简式量表中国版（EPQ-RSC）测查。
Methods SCL-90 and Coping Style Questionnaire were used to survey 97 impoverished top students, 147 impoverished ordinary students and 120 non-impoverished students.
方法采用SCL-90和应对方式问卷，对某师范院校优秀贫困生97名、一般贫困生147名、非贫困生120名进行测试。
Methods A survey of caries was performed in 1052 non native children according to the Criteria for National Oral Epidermiologic Survey.
方法按全国口腔流行病学调查标准，对10 5 2名外来儿童的龋病进行调查。
Methods With the method of cluster stratified random sampling, a questionnaire survey was conducted in medical and non-medical higher-educated school in Jilin city.
方法采用整群分层随机抽样的方法，对吉林市某医学院校及非医学高校的在校大学生进行问卷调查。
Methods Questionnaire survey and random interviews were conducted among non-medical students divided into 2 groups-special topic lecture group and peer education group.
方法以问卷调查和随机访谈的形式对非医学专业的大学生进行两种教育方式效果的调查。
Compared with other methods, in the damreconnaisance, the geophysics method can realize a fast and non-destructive survey.
高密度电法可以大大减少钻孔探测的工作量，对钻孔探测是一种很好的补充手段。
Compared with other methods, in the damreconnaisance, the geophysics method can realize a fast and non-destructive survey.
高密度电法可以大大减少钻孔探测的工作量，对钻孔探测是一种很好的补充手段。
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