题目内容

You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?() (Choose two).

A. The backup as copy can only be taken to disk
B. The backup as copy can only be taken to tape
C. Backup can be performed only when the instance is shutdown
D. Backup will constitute all used and unused blocks in the database

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气化大幅度减负荷,613#如何调整?

简述《中国经济思想史》的诞生的三个阶段。

在X线管中用于发射电子的是()摄影时用于补偿管电压变化引起的管电流变化的是()

A. 灯丝
B. 集射罩
C. 灯丝变压器
D. 空间电荷补偿变压器
E. 电容电流补偿变压器

低浓度阿司匹林抑制(),减少血小板TXA2生成,从而影响血小板聚集,防止血栓形成。

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