应该大于70%。因为其中一个方法是70%。第二个也大于50%。所以大于70%.

回答: 130/200 = 65%pediatrician22010-11-06 18:36:09

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not necessary. when two methods disagree, you -pediatrician2- 给 pediatrician2 发送悄悄话 pediatrician2 的博客首页 (193 bytes) () 11/06/2010 postreply 20:03:56

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