The system was running a normal workload during the last 24 hours. You need to ensure that with the same workload you should be able to flashback tables by three hours. What would you do to find the system recommendations for the undo retention period and the undo tablespace size?（） set DB_FLASHBACK_RETENTION_TARGET=10800 。 create a new scheduler window for the time period of 24 hours and use the optimizer statistics 。 modify the Automatic Workload Repository (AWR) snapshot time interval to three hours and use ADDMfindings 。 specify New Undo Retention as three hours and Analysis Time period as Last One Day in the Undo Advisor page and use its recommendatio。
著作财产权的内容具体包括什么？
压绳下管法适用于管径为（）的管道 300mm以下。 300～500mm。 400～700mm。 400～800mm。
（）是汽车的一项综合使用性能，它是指汽车运行过程中为使用者提供的方便程度。 使用方便性。 乘坐舒适性。 动力性。 行驶平顺性。
教师用红笔批改作业，这是运用知觉的（） 整体性。 恒常性。 选择性。 理解性。
影响客户终生价值的因素有（）
