解释卖者的成本，生产者剩余和供给曲线关系。
Explain how sellers' costs, producer surplus, and the supply curve are related.
李嘉图比较成本理论中的过剩供给曲线和国际均衡价格是该理论的教学重点和难点内容。
Curve of excess supply and international equilibrium price in Ricardian comparative cost theory are teaching content, important and difficult.
李嘉图比较成本理论中的过剩供给曲线和国际均衡价格是该理论的教学重点和难点内容。
Curve of excess supply and international equilibrium price in Ricardian comparative cost theory are teaching content, important and difficult.
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