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消费价格指数简称CPI,是度量消费商品及服务项目价格水平随着时间而变动的相对数,反映居民家庭购买的消费品及服务价格水平的变动情况。
The Consumer Price Index, abbreviated as CPI, is a measure of the relative price changes of consumer goods and services over time and reflects changes in the prices of consumer goods and services purchased by households.