NO.PZ2023061903000001
问题如下：
Q. Based on typical labor utilization patterns across the business cycle, productivity (output per hours worked) is most likely to be highest:选项：
A.at the peak of a boom. B.into a maturing expansion. C.at the bottom of a recession.解释：
C is correct. At the end of a recession, firms will run “lean production” to generate maximum output with the fewest number of workers.
我理解unemployment rate 在recovery 和 expansion交接的点到最高值，那不是b吗
