原帖由 manstein 於 2007-11-2 05:26 PM 發表 
+ F% n5 v/ L g; o6 J) OAssume A is correct, den B is oso correct, therefore not the rite answer! q2 ?. m+ }1 y- ^+ O
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 ...  |