查询词典 stratified sample
- 与 stratified sample 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Methods:Stratified multiple phases sample method was adopted, 240 female doctors were assessed.
采用多阶段分层抽样方法对240名三级甲等综合医院的女性医生进行调查。
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Methods Stratified Cluster Sample was used in survey on middle-school students in Mengcheng County.
方法采用分层整群抽样方法对蒙城县中学生进行基线和干预后艾滋病相关问题的问卷调查。
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Methods With a questionnaire, a stratified cluster sample of 7 527 students were investigated. Multivariate logistic regression analysis was performed to assess factors for suicidal ideation.
方法采用统一调查表，应用分层整群抽样的方法调查广州市8所中学和8所小学学生7 527名，通过多因素Logistic回归模型筛选自杀意念的危险因素。
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Methods A stratified random cluster sample of12637students in32schools were investigated with an anonymous questionnaire.
采用整群抽样的方法，抽取上海市有代表性的32所学校共计12637名大中学生，进行无记名问卷调查。
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The sample was stratified by farm size (250-499, 500-999, and 1000 or more acres), and telephone follow-up was used to limit non-response bias.
该样本是由农场规模（250-499，500-999，1000亩以上的分层），电话随访用来限制非反应偏差。
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Methods A stratified cluster sample of1007college students were questionnaired.
采用分层整群抽样的方法，对广州市1007名大学生进行问卷调查。
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Objective To study the interrelation of life habit,knowledge and consciousness in preventing infectious disease,and to provide evidence for health education of infectious diseases.Methods A stratified cluster sample of1007college students were questionnaired.
目的 了解学生日常生活习惯、传染病防治知识、防治意识的状况及其相互关系，开展大学生传染病防治健康教育提供依据方法采用分层整群抽样的方法，对广州市1007名大学生进行问卷调查。
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Methods A stratified random cluster sample of 17269 students in China were investigated with the children and adolescents' QOL scale according to the census data in 2000, and the urban and country norm of the scale were respectively established.
依据2005年第5次全国人口普查资料，在全国进行多阶段分层整群抽样，分别建立城市和农村2套常模。
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College students were selected as the sample from 182 universities in China according to the principle of stratified sampling.
根据常模组测量的结果，给出了85种生活事件和日常琐事的心理影响指数、心理影响范围和心理影响总量。
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All subjects in the sample of 600 individuals were selected by a stratified systematic random sampling method and interviewed by trained interviewers.
本研究采横断面研究方法，以苗栗县所有65岁以上老年人作为研究母群体，采分层随机抽样的方法，共得到600位样本，其中男性302人，女性298人。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。