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单项选择题You executed the STARTUP MOUNT command to start your database. For which database operation do you need to start the database in the MOUNT state？（）

A、renaming the control files

B、dropping a user in your database

C、enabling or disabling redo log archiving

D、dropping a tablespace in your database

E、re-creating the control files， after you lost all the control files in your database

  • C

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