定义总成本，平均总成本，边际成本。它们之间关系是什么？

Define total cost, average total cost, and marginal cost. How are they related?

youdao

定义总成本，平均总成本，边际成本。它们之间关系是什么？

Define total cost, average total cost, and marginal cost. How are they related?

youdao