题目详情
单选题 ( ) refers to the year-to-year fluctuations in unemployment around its natural rate, and it is closely associated with the sort-run ups and downs of economic activity
A. Cyclical unemployment
B. Frictional unemployment
C. Sectoral shift
D. GDP

学科:大学英语综合课程
时间:2025-09-23 04:16:25
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