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三角形的旁心是什么？我一直不知道这个名词，咱们各地的叫法不同的吧In Reply To:我都忘了这个叫外心了。三角形的旁心是什么？我一直不知道 Posted by:c0500448264 at 2005-07-20 18:47:54 Followed by:
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