单选题
A The backup RB3 and the current online redo log files
B the backup RB2 and the archived redo log files after the log sequence number 15622
C Backup R81 and the archived redo log hies after the log sequence number 12871
D The backup RB3 and the archived redo log files after the log sequence number 16721
正确答案
答案解析
略
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