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In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure.  How would you recover the lost redo log member？（）
A:import the database from the last export
B:restore all the members in the group from the last backup
C:drop the lost member from the database， and then add a new member to the group
D:restore all the database files from the backup， and then perform a complete recovery 
E:restore all the database files from the backup， and then perform an incomplete recovery

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出自：Oracle认证

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