The database instance is currently using SPFILE. View the Exhibit and examine the error that you receivedwhile running the DB Structure Integrity check. Given below are the steps to recover from the error in randomorder： 1.Shut down the instance， if not already done. 2.Copy one of the remaining control files to a new location. 3.Change the value of the CONTROL_FILES initialization parameter to correspond to the new location of thecontrol files. 4.Start up the database instance to the NOMOUNT stage. 5.Recover the database to the point of failure of the control file. 6.Open the database. Identify the correct sequence of steps（） 1，2，4，3，5，6。 2，4，3，5，6；1 not required。 4，5，6，2，3；1 not required。 5，2，3，4；1 and 6 not required。
按照《特种设备安全监察条例》规定，特种设备使用单位必须履行（）义务。 设备的维护保养必须请专业队伍进行的；。 发生事故后执行当地质监部门制定的特种设备的事故应急措施和救援预案的；。 特种设备投入使用前进行登记的；。 使用符合安全技术规范要求的产品的。
教师为什么要进行课堂观察和课例研究。
Which three statements are true about memory buffer allocation by a MySQL Server?（） Global buffers such as the InnoDB buffer pool are allocated after the server starts, and are never freed。 Thread buffers are allocated when a client connects, and are freed when the client disconnects。 Buffers that are needed for certain operation are allocated when the operation starts, and freed when it ends。 User buffers are allocated at server startup and freed when the user is dropped。 All dynamic buffers that are set with a SET GLOBAL statement immediately get allocated globally, and are never freed。
A customer has 12 x445s and 20 x365s in their datacenter that are dedicated to production workloads. The customer wants to standardize on IBM Director as their Intel environment systems management platform. Which server platform is supported as a Director server？（） zSeries。 pSeries。 iSeries。 iSeries with IXA Adapter。
输电线路是指电压（）KV以上的电力线路
