種類不是C4^4, 應該是2^4=16
所有跟帖:
• 還是翠花可人心哪,嗬嗬 -今安在- ♀ (0 bytes) () 06/04/2009 postreply 22:17:01
• 還是翠花可人心哪,嗬嗬 -今安在- ♀ (0 bytes) () 06/04/2009 postreply 22:17:01
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