说出被誉为中国少数民族英雄的三大史诗的作者,名称。
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带有回转的A坐标或C坐标的数控系统,称为()的数控系统。
A. 二坐标
B. 两轴半
C. 三坐标
D. 四坐标
我国的生活照明、非工业、普通工业和农业生产的电价均采用()。
A. 一部制电价
B. 两部制电价
现代知识产权保护制度大大扩充了保护的对象,其保护的对象主要包括()。
A. 邻接权
B. 地理标志权
C. 集成电路布局设计权
D. 未披露的信息专有权
Why should you back up a duplicated tablespace after a TSPITR is complete?()
A. The tablespace cannot be duplicated or restored to any point in time after the duplication.
B. The tablespace cannot be duplicated or restored to the point in time before the duplication.
C. The entire database cannot be restored after a TSPITR, so a backup is required.
D. You cannot bring the tablespace online until its been backed up.
E. There is no requirement to do so, as RMAN will back up the tablespace after the TSPIT