It is an election year, and the economy is in a recession. The opposition candidate campaigns on a platform of passing an investment tax credit, which would be effective next year after she takes office. What impact does this campaign promise have on economic conditions during the current year?
A.美国
B.德国
C.日本
D.巴西
预测20世纪70年代中期利率和失业率的变动情况。
A.华盛顿
B.林肯
C.罗斯福
D.尼克松