使用游标卡尺测量工件时，测量力（）通过测量者的感觉来控制。 ["能","不能","有时能","仅"]
What two are the prerequisites for enabling Flashback Database?（） (Choose two) [" The database must be in ARCHIVELOG mode"," The database must be in MOUNT EXCLUSIVE mode"," The database must be opened in RESTRICTED mode"," The database instance must be started in the NOMOUNT state"," The database instance must have the keep buffer pool defined"]
有规则游戏的几个基本因素中，核心因素是（） ["游戏的任务","游戏的玩法","游戏的规则","游戏的结果"]
差压计的压力检测部位是：（） ["隔膜","弹簧","伸缩管"]
To generate recommendations to improve the performance of a set of SQL queries in an application， you execute the following blocks of code： BEGIN dbms_advisor.create_task（dbms_advisor.sqlaccess_advisor，’TASK1’）； END； / BEGIN dbms_advisor.set_task_parameter（’TASK1’，’ANALYSIS_SCOPE’，’ALL’）； dbms_advisor.set_task_parameter（’TASK1’，’MODE’，’COMPREHENSIVE’）； END； / BEGIN dbms_advisor.execute_task（’TASK1’）； dbms_output.put_line（dbms_advisor.get_task_script（’TASK1’））； END； / The blocks of code execute successfully；however，you do not get the required outcome. What could be the reason？（） [" A template needs to be associated with the task."," A workload needs to be associated with the task."," The partial or complete workload scope needs to be associated with the task."," The type of structures （indexes， materialized views， or partitions） to be recommended need to be specified for the task."]
立体划线是在工件上几个互成（）的表面上划线。
