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At long-run macroeconomic equilibrium, ________. (在长期的宏观经济平衡下, _ _ _ _ _ _ _ _。——中文由在线翻译而来,仅供参考)
A.
an inflationary gap exists通货膨胀存在差距
B.
real GDP equals potential GDP实际GDP等于潜在的GDP
C.
a recessionary gap exists存在衰退差距
D.
real GDP is less than potential GDP but is as close as it is possible to be实际国内生产总值低于潜在的国内生产总值,但是可以接近于可能