Knowledge parent, knowledge forms and knowledge transaction cost and so on are the factors affecting learning cost.

知识母体、知识的表现形式和知识交易费用等是影响学习成本的主要因素。

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Knowledge parent, knowledge forms and knowledge transaction cost and so on are the factors affecting learning cost.

知识母体、知识的表现形式和知识交易费用等是影响学习成本的主要因素。

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