题目内容

箱形货舱盖开启后可存放于：（） ①、甲板上；②、码头上；③、舷边水中；④、悬挂于吊杆上

A. ①、②、③
B. ②、③、④
C. ①、③、④
D. ①、②、④

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What are the two advantages of RMAN Block Media Recovery （BMR） over filelevel recovery？（）

A. BMR lowers the mean time to recover （MTTR）.
BMR supports pointintime recovery of individual data blocks.
C. BMR enables you to use incremental backups for block recovery.
D. BMR enables recovery even when the database is not mounted or open.
E. BMR enables you to use proxy backups to perform block media recovery.
F. BMR enables increased availability of data during recovery because the data file that requires a recovery can remain online.

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