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请参阅 登录到 Office 或 我忘记了 Office 所用的帐户用户名或密码 。. 此信息是否有帮助? 培训：使用 Microsoft 个人、工作或学校帐户登录 Office.com。. 观看本视频了解操作方式。.
Applies To: Office 2021, Office 2019, Office 2016
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