谢谢指教!但是prep对这个图有个问题是判断"the seasonally unadjusted change in the price of new vehicles in August 2010 over the previous month was about the same as the seasonally unadjusted change in the price of food away from home overthe same period"的对错,不知您还能否记得这个“unadjusted change in the price in August 2010 over the previous month”是怎么看的呢?