Conclusion Marginal cost method is helpful to explore the criterion of average days for inpatients.
结论边际成本分析方法有助于住院病人平均住院日标准的制定。
Bundling selling is a kind of popular method for selling information goods. And this method should be taken into account on the basis of low marginal production cost.
捆绑式销售是当前比较流行的信息商品销售方法之一，这种方法充分考虑了生产时的低边际成本。
Concept and connotation of the economic margin on exploration and production are defined and the determination method for marginal cost and marginal revenue of a petroleum enterprise is discussed.
界定了有关油气资源勘探开发经济边际的概念和内涵，探讨了石油企业边际成本和边际收入的确定方法。
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