方法采用随机整群抽取湖北省浠水县6所小学6 ~9岁学龄儿童789名进行健康状况调查和体格检查。
Methods a randomly cluster sampling method was used to choose 789 school-aged children from 6 to 9 years old came from 6 primary schools in Xishui County.
中国大陆湖北省黄冈市浠水县的邮政编码是438200。
The postcode of Xishui County, Huanggang City, Hubei Province, China is 438200.
中国大陆湖北省黄冈市浠水县的邮政编码是438200。
The postcode of Xishui County, Huanggang City, Hubei Province, China is 438200.
应用推荐