Divide a rectangle into seven part(in the same sizes,shapes)
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收錄日期: 2021-04-19 01:54:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080921000051KK01831
收錄日期: 2021-04-19 01:54:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080921000051KK01831