3-3

3-3

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Uploaded on Nov 2, 2009

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轉換下視角,應該就能解答了。

轉換下視角,應該就能解答了。

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Uploaded on Jun 4, 2009

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比如說,看上去像幾何問題但其實是函數問題之類的

比如說,看上去像幾何問題但其實是函數問題之類的

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Uploaded on Jun 4, 2009

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math

math

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Uploaded on May 7, 2009

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169_9421

169_9421

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Uploaded on Apr 6, 2009

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