19. According to classical macroeconomic theory, changes in the money supply affect
(A) nominal variables and real variables.
(B) nominal variables, but not real variables.
(C) real variables, but not nominal variables.
(D) neither nominal nor real variables.
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統計: A(1), B(0), C(0), D(0), E(0) #2853794
統計: A(1), B(0), C(0), D(0), E(0) #2853794