Is a questionnaire answered by 500 people truly representative of the population as a whole?

  • 由500人参加的问卷调查能真正代表所有民众吗?

  • 《牛津高阶英汉双解词典》 2025-01-19 09:46:02

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