题目内容
已知某仪器最大允许误差为3（置信概率0.9973），则其B类不确定度表征值为（）。
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You are the network administrator for On a windows Server 2003 computer named TestKingF, you use the backup program to automatically back up eight servers. You use a schedule task named AutoBack. The task runs in the security context of a domain account named NightBackup. The Default Domain Policy Group Policy object (GPO) is configured with the following account policies settings: 1. Minimum password length: 8 characters 2. Password expiration: 30 days 3. Enforce password history: 12 passwords remembered 4. Account lockout threshold: 3 invalid logon attempts 5. Account lockout duration: 30 minutes The backup program runs successfully for four weeks. After four weeks, you notice that nightly backups no longer occur. A successful backup occurs when you log on the TestKingF with your own user account and perform a local backup. Your user account is member of the Domain Admins group. You want the AutoBack scheduled task to perform unattended backups every night at 11:00 P.M. Which two actions should you perform in order to resume the nightly backups by using the AutoBack scheduled task?（） (Each correct answer presents part of the solution. Choose two.)
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