两样本均数的比较A.差别非常大B.有差别C.无差别D.差别较大E.还难以下结论

作者: rantiku 人气: - 评论: 0

问题两样本均数的比较A.差别非常大 B.有差别 C.无差别 D.差别较大 E.还难以下结论

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答案 B

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