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·经济理论·论规模经济的本质:结构经济·············································,··················································……叶生洪彭星间(1 .1)中国
· Economic theory · On the nature of economies of scale: Structural economy ························ ·············· · · · · · · · · · · · · · · · · · · · · · · · · ················ ················································································