原帖由 manstein 於 2007-11-2 05:26 PM 發表 
: j! k3 L$ B: W* XAssume A is correct, den B is oso correct, therefore not the rite answer5.39.217.77:88987 h2 K" V# l- n }0 f `% R
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 ...  |