http://entertainment.webshots.com/photo/2665698300105857182tUHyoE
http://entertainment.webshots.com/photo/2651745040105857182dkofSQ
http://entertainment.webshots.com/photo/2673730890105857182ppMVAF
pure maths.
2010-09-12 6:28 am
回答 (1)
2010-09-12 5:05 pm
✔ 最佳答案
=====================================================圖片參考：http://img534.imageshack.us/img534/5759/32775007.png
2010-09-12 09:05:27 補充：
http://img534.imageshack.us/img534/5759/32775007.png
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100911000051KK01801