定基比和环比属于A.平均数 B.构成比 C.率 D.频率 E.相对比

作者: tihaiku 人气: - 评论: 0

问题定基比和环比属于

选项 A.平均数 B.构成比 C.率 D.频率 E.相对比

答案 E

解析

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