問老朋友們好!
http://bbs.wenxuecity.com/bbs/archive.php?act=index&keyword=%E6%96%87%E4%B8%AD%E8%A7%85%E8%B0%9C&SubID=puzzle&year=2006
http://bbs.wenxuecity.com/archive/2007/puzzle/55111.html
http://bbs.wenxuecity.com/archive/2008/puzzle/71216.html