微软官方SN
- Windows: https://docs.microsoft.com/en-us/windows-server/getstarted/kmsclientkeys
- Office 2013: https://technet.microsoft.com/en-us/library/dn385360.aspx
- Office 2016 & 2019: https://technet.microsoft.com/enus/library/dn385360(v=office.16).aspx
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