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You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 (SP1) installed. You need to ensure that you can restore a mailbox deleted from a mailbox database if the mailbox was deleted up to six months earlier.Th solution must not require a database backup. What should you do?()
A. Create a managed custom folder and managed content settings.
B. From the Exchange Management Shell, run the New-MailboxExportRequest cmdlet.
C. From the Exchange Management Shell, run Set-MailboxDatabase -DumpsterStatistics $true.
D. From the Exchange Management Shell, run the Export-Mailbox cmdlet.
E. Create a retention policy and a retention tag.
From the properties of the mailbox database, modify the Deletion Settings.
高炉冶炼含铁原料包括()。
A. 生料
B. 熟料
C. 生料和熟料