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Which of the following is the best way to describe equilibrium in a market? At equilibrium, the (以下哪一个是描述市场均衡的最佳方法?在平衡时,——中文由在线翻译而来,仅供参考.下同.)
A.
price is the lowest possible.价格是最低的。
B.
price is usually affordable to most people.价格通常是大多数人都可以负担的。
C.
supply and demand curves can never shift again.供需曲线永远不会再转移。
D.
quantity supplied equals the quantity demanded.供应量等于所需数量。