... 随机抽选 random selection 随机抽样程序 random sampling procedure 随机出现 random occurrence ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
Method: 362 cases of Lizu elderly people who were investigated by a random sampling procedure were interviewed by using MOS SF-36 questionnaire.
方法：采用随机、整群抽样的方法，应用生命质量量表（SF-36健康量表），对五指山市362名黎族老年人进行入户问卷调查。
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