问题 单项选择题

在指数的概念中()

A、简单指数是指个体指数,加权指数是指总指数

B、简单指数是指总指数,加权指数是指个体指数

C、简单指数和加权指数都是指个体指数

D、简单指数和加权指数都是指总指数

答案

参考答案:D

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