老歐,學點邏輯學吧,搞清楚類概念和種概念的區別。。。哈哈
所有跟帖:
• 那你介紹一本德文的邏輯學書籍, -europe- ♂ (50 bytes) () 06/02/2011 postreply 12:48:58
• 那你介紹一本德文的邏輯學書籍, -europe- ♂ (50 bytes) () 06/02/2011 postreply 12:48:58
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