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说说郎教授提出的6＋1产业链理论

Posted by tutubishop on 2010/01/07 in 制造业

做生意的讲求投资收益率。你也许以为制造生意销售利润率不高，产品增值不大，但是从投资收益分析的角度来说，很多制造业的资金收益率并不低。

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