选择题:时期数列的特点是A、指标数值具有可加性B、指标数值不能直接相加C、指标数值通过连续登记加总取得D、指

题目内容:
时期数列的特点是
A、指标数值具有可加性
B、指标数值不能直接相加
C、指标数值通过连续登记加总取得
D、指标数值只能间断计量
E、指标数值的大小与时间长短有直接关系
参考答案:

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