确定哪两种情况下，你可以使用用于恢复的数据恢复顾问。
Identify two situations in which you can use Data recovery Advisor for recovery. Choose two.
您可能有一个Controller数据库需要恢复（例如从应用程序顾问那里发来的）。
You may already have a Controller database to restore (for example sent from the application consultant).
您可能有一个Controller数据库需要恢复（例如从应用程序顾问那里发来的）。
You may already have a Controller database to restore (for example sent from the application consultant).
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