送交者: meiyou 于 2007-09-21, 10:08:07:

回答: 周末了，轻松一下，知道原理的请解释 由 一事无成 于 2007-09-21, 09:35:19:

• 7 is a number that is assigned least cultural/visual significance - meiyou (59 bytes) 2007-09-21, 10:11:54 (171782)
  • now i think people chose 7 is because - meiyou (225 bytes) 2007-09-21, 10:19:59 (171784)

加跟贴