在现埸对油纸绝缘的电力电缆进行耐压试验时，所选择的方法中最适宜的是（）。 交流耐压法。 冲击耐压法。 操作波耐压法。 直流耐压法。
In which scenarios would you rebuild an index？（） when you need to disable the index usage。 when you need to change storage options。 when you need to enable index monitoring。 when you need to move the index to another tablespace。
象征性游戏（符号游戏）
下列各种作业场所中，其照明电源电压可用36V的有（）。 高温场所。 人防工程。 金属容器内。 比较潮湿的场所。 净高低于2.5m的工人宿舍。
Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache. What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?（） Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.。 Run the Automatic Workload Repository Monitor (ADDM).。 Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.。 Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.。
“云”是网络、互联网的一种比喻说法。过去往往用云来表示电信网，后来也用来表示（）和底层基础设施的抽象。
