鴨逃不掉, 隻要貓的速度比鴨的大pi倍以上

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no - ANSWER to this question is yes, (4.60338811) -guest007- 給 guest007 發送悄悄話 (332 bytes) () 05/16/2010 postreply 19:44:57

回複:no - ANSWER to this question is yes, (4.60338811) -jinjing- 給 jinjing 發送悄悄話 (243 bytes) () 05/17/2010 postreply 19:52:54

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