奧數題5

in partiko •  6 years ago  (edited)

看到他做出來了一道奧數題，我第一個反應是他式子列的雜亂無章，到時候不容易分步給分；第二個反應是這本書肯定編制得太早了，不符合現在要求的難度，當然這句話沒有告訴他。不過他沒有在意，嗯嗯地接受了建議然後玩槍去了。

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6 years ago by

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      ·  6 years ago 

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