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The loss of the control file forced you to re-create the control file. After re-creating it and opening the database， you find that some of the data files are named as MISSINGnnnnn， where nnnnn is a five-digit number starting with 0. What could be the possible reason？（）
A: These are the data files that are corrupted.
B: There is no SYSAUX tablespace in your database
C: There is a read-only tablespace in your database.
D: These are the data files that cannot be recovered.

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出自：Oracle认证

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