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開放時間：
2nd-level launch is scheduled for 12:00 a.m. Beijing Time on Monday, March 17, 2003. Adjusting for time zone differences, the launch will take place at 4:00 p.m. GMT on Sunday, March 16, 2003.

保留域名：
The CNNIC Registry has reserved certain names. These include:
· Country names, 3-letter and ISO3166
· Chinese Government organizations and leaders' names
· Names that are for National Security · Province and City names · Special telephone numbers. (001), etc.
· All gTLD's and some 2nd level spaces (biz.cn, kids.cn)
· Certain famous trademarks (about 350)
· Names labeled by the UN to promote world culture, heritage.
· Chinese Universities and Colleges
· News Media as approved by the National News Office

來源：http://www.internetters.co.uk/cn_faq_2nd_level.htm