NO.PZ2021052601000013
问题如下：
If relative to prior values of their respective indicators, the inventory–sales ratio has risen, unit labor cost is stable, and real personal income has decreased, it is most likely that a peak in the business cycle:
选项：
A. has occurred.
B. is just about to occur.
C. will occur sometime in the future.
解释：
A is correct. Both inventory–sales and unit labor costs are lagging indicators that decline somewhat after a peak. Real personal income is a coincident indicator that by its decline shows a slowdown in business activity.
库存销售比和单位劳动力成本都是滞后指标，在经济见顶后有所下降。实际个人收入是一个同步的指标，它的下降表明商业活动有所放缓。综上所述，经济已经见顶，面临下行压力。
如题。。。。。。。。
