它具有四个特征: 它具有四个特征: 产品同质(Homogeneous Products); 厂商无数(Numerous Firms); 要素自由进出(Free Entry and Exit); 信息充分(Enough Information).
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Markets work best when numerous firms compete against each other.
市场最好就是有很多公司相互竞争。
Bing launched just a bit more than one month ago, and since then, we have seen reports from numerous third-party web analytics firms that Bing was indeed doing quite well.
比应在一个多月前才刚刚发布,但是从那时起,我们就看到许多第三方网络分析公司的报告称必应的确表现良好。
Of necessity, inventions in chipmaking rely on lots of existing technology, which is itself covered by hundreds of patents held by numerous other firms.
在芯片制造领域的发明不可避免很大程度上要依靠现有的技术,而这些技术又由众多其它公司的数百项专利所覆盖。
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