If p1,p3;p2,p4 had been connecded,you would be right

所有跟帖: 

You are correct. -ManYou- 給 ManYou 發送悄悄話 (4 bytes) () 06/30/2010 postreply 17:13:45

It got to same anwser: (1/2+1/4+1/8)*(1/2+1/4)*4/6=7/16 -ManYou- 給 ManYou 發送悄悄話 (0 bytes) () 06/30/2010 postreply 18:41:37

請您先登陸,再發跟帖!