method of random sampling造句

例句与造句

1. 1809 people of rural and urban huizhou , whose ages were from 20 ~ 59 , were tested for 5 physique indexes with the method of random sampling
   摘要采取随机抽样法对年龄为20 ~ 59岁的惠州市城乡1809人进行了5项形态指标测试，提供了群众体质健康比较数据。
2. It's difficult to find method of random sampling in a sentence. 用method of random sampling造句挺难的