单选题 CPI data for a recent 12-month period:
category percent of index current price level year-ago price level
commodities 70 140 145
services 30 80 76
The annual inflation rate as measured by CPI was closest to:
  • A. -3.62%
  • B. -1.85%
  • C. 1.85%
【正确答案】 B
【答案解析】[解析] [*] 年度通货膨胀率=[*]