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单选题
How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has already completed?()
A

 Issue the ALTER DISKGROUP ... ADD DISK command.

B

 Issue the ALTER DISKGROUP ... UNDROP DISKS command.P.... DROP DISK CANCEL command.

C

 Issue the ALTER DISKGROU

D

 Retrieve the disk from the Recycle Bin after the operation completes.


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