题目内容

治疗伴有消化性溃疡的高血压药物首选的药物是（）。治疗心绞痛急性发作的首选药物是（）。

A. 硝酸甘油
B. 可乐定
C. 硝苯地平
D. 卡托普利
E. 维拉帕米

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

A. BMR lowers the mean time to recover （MTTR）.
BMR supports point-in-time 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 requires a recovery can remain online.

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