Professor X was killed by one of his four students, who was helped by another of the four students. His students declared: A: If B is guilty of something, then C must be innocent. B: If A is innocent, then C must be guilty. C: If B was the killer, then D must have had nothing to do with the crime. D: I am innocent.
As we should know, guilty people always lie, and innocent people always tell the truth. Who killed the professor, and who was his accomplice?
哈哈哈哈 O(∩_∩)O哈哈~ 好久不来了，不小心看了一眼自己主页，发现自动关联了自己以往发过的帖，点进这个看了一眼，笑个半死。。。敢情我当初还发过这么搞笑的东西啊，我自己完全不记得了 
雷达卡
发表于 2005-11-22 20:57:10
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发表于 2005-11-23 09:01:54