問題詳情
8 某產品的市場反需求函數為 
，其中 p是價格，q 是數量。當需求價格彈性為 -1 時，此時的價格為何？
(A) 50/3
(B) 100/3
(C) 25
(D) 20
參考答案
無參考答案
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