下列何種情狀會發生超額需求(excess demand)?
(A)市價低於均衡價格(B)市價等於均衡價格
(C)市價高於均衡價格(D)需求曲線為負斜率
下列何種情狀會發生超額需求(excess demand)? (A)市價低於均..-阿摩線上測驗
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