问题 单项选择题

The current annual inflation rate, as measured by using the Consumer Price Index (CPI), is best defined as:()

A. increase in the CPI from a year ago.

B. percentage change in the CPI from its base period.

C. percentage change in the CPI from a year ago.

答案

参考答案:C

解析:

The inflation rate is the percentage change in the price index from a year earlier.

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单项选择题