Contrast group: Other 218 undergraduates were adopted in cluster sampling, taking class as unit.

  • 对照组: 除外观察组学生,随机在4届学生中以班为单位整群抽样218名学生.

  • 互联网摘选 2025-01-19 11:09:04

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句