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柯林斯詞典
1. N a statistic indicating the relative change occurring in each successive period of time in the price, volume, or value of a commodity or in a general economic variable, such as the price level, national income, or gross output, with reference to a previous base period conventionally given the number 100 指數(shù); 反映一段時(shí)間內(nèi)特定商品價(jià)格、國(guó)內(nèi)收入等經(jīng)濟(jì)變量相對(duì)前一階段的變化[statistics]
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