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You work as a database administrator for Supportcenter.cn. On a Monday morning， you find the database instance aborted. After inspecting the alert log file， you execute the STARTUP command in SQL*Plus to bring the instance up. What statement is true？（）
A:PMON coordinates media recovery.
B:SMON coordinates instance recovery.
C:PMON coordinates instance recovery.
D:Undo Advisor would roll back all uncommitted transactions.
E:SQL*PLUS reports an error with the message asking you to perform instance recovery.

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出自：Oracle认证

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