yes. Sorry. Should be

來源: 392 於 2012-12-28 18:55:30 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (53 bytes)
回答: is ?d a typo? 由 rx300 於 2012-12-28 18:37:56

a leq b leq c leq d

所有跟帖： 

• I actually "solved" it in less than 2min -rx300- ♂ 給 rx300 發送悄悄話 (209 bytes) () 12/28/2012 postreply 19:07:24

• well, I should have said no googling -392- ♂ 給 392 發送悄悄話 392 的博客首頁 (138 bytes) () 12/28/2012 postreply 19:15:15

請您先登陸，再發跟帖！