[单选]

The SQL Tuning Advisor has been configured with default configurations in your database instance.
Which recommendation is automatically implemented without the DBA's intervention after the SQL Tuning Advisor is run as part of the AUTOTASK framework?（）

Which is not a valid way of backing up a control file？（）    Backing up the control file to trace。  Copying the existing control file of the database to the backup location during a hot backup 。  Copying the existing control file of the database to the backup location during a cold backup。  Creating a backup control file。  Using the create controlfile command。 液化石油气的密度随温度上升而（）。 急剧减小。 不变。 急剧增长。 创业当老板有哪些好处什么？ Which of the following is a benefit of having a Solution Assurance？（） The need to involve solution experts is removed。 Financial justification of the proposal is enhanced。 Time required to design a solution is decreased。 Complex solutions are simplified considerably。 工程造价审计是以（）为标的。 A.工程结算价 。 B.建设全过程 。 C.施工阶段 。 D.立项审批阶段。

The SQL Tuning Advisor has been configured with default configurations in your database instance.
Which recommendation is automatically implemented without the DBA's intervention after the SQL Tuning Advisor is run as part of the AUTOTASK framework?（）