Which three activities are supported by the Data Recovery Advisor?（）
- A、Advising on block checksum failures
- B、Advising on inaccessible control files
- C、Advising on inaccessible block change tracking files
- D、Advising on empty password files
- E、Advising on invalid block header field values
正确答案:A,B,E
答案解析:有
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