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Your database is running in the ARCHIVELOG mode. You placed a tablespace， tbs_1， offline with the immediate option. Which statement is correct in this scenario？ （）
A:The operation would fail if tbs_1 were a read-only tablespace.
B:The operation would fail if tbs_1 were a read/write tablespace.
C:The operation would fail if tbs_1 were the default tablespace for the database.
D:If the above operation were successful， media recovery would be required to bring the tablespace online.
E:If the above operation were successful， instance recovery would be required to bring the tablespace online.

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出自：Oracle认证

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