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问题详情

下列属于时点数列的是（）

A、某厂各年工业产值

B、某厂各年生产工人占全部职工的比重

C、某厂各年劳动生产率

D、某厂各年初职工人数

时间：2021-09-01 20:43 关键词：联大安阳师范金融学统计学原理

答案解析

D

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