112. 计算总指数时，在下面哪种情况下可用加权调和平均数指数的形式（）。（1分）-湖北继续教育网网校

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[多选题]112. 计算总指数时，在下面哪种情况下可用加权调和平均数指数的形式（）。（1分）

A

B

C

D

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