原帖由 manstein 於 2007-11-2 05:26 PM 發表 
/ m P% p9 t) ^+ ?9 l* D, pAssume A is correct, den B is oso correct, therefore not the rite answer& V' O* c$ T$ p- t( W# k' ?, F
Assume B is correct, den assume A is lying, den the culprit is either A or D, den if D is oso lying, den the culprit is either ...  |