quasi-identities 中文意思是什麼
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Introduces road classify and the emergence and development of toll road at home and abroad. discusses the identities of benefit of difference and quasi - public goods of toll road
介紹公路分類及其屬性,分析了中外收費公路的產生與發展,論述了收費還貸公路的級差效益和準公共物品特性,對公路收費的合理性進行分析。
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