一位常出數學難題折磨人的勞苦大眾。
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• 常在河邊走,總會遇到螃蟹 -怪哉- ♂ (194 bytes) () 12/02/2011 postreply 21:18:58
• 常在河邊走,總會遇到螃蟹 -怪哉- ♂ (194 bytes) () 12/02/2011 postreply 21:18:58
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