按GB7588-2003《电梯制造与安装安全规范》附录M规定，在V形绳槽的当量摩擦系数的计算公式，槽的角度γ值在任何情况下不应小于（）。 15°。 25°。 35°。
You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used. Which method would you follow to achieve this？（） enable index monitoring and query the DBA_OBJECTS view。 enable index monitoring and query the DBA_INDEXES view。 enable index monitoring and query the V$OBJECT_USAGE view。 enable index monitoring and view the DBA_INDEXTYPE_COMMENTS view。
时俊卿《基于学情分析的课堂教学策略》中指出：在促进本课知识与技能落实上学生的学习要（），而不是被动机械性掌握。
Which two statements about the SQL Management Base (SMB) are true?（） It contains only SQL profiles generated by SQL Tuning Advisor.。 It stores plans generated by the optimizer using a stored outline.。 It is part of the data dictionary and stored in the SYSAUX tablespace.。 It is part of the data dictionary and stored in the SYSTEM tablespace.。 It contains the statement log, the plan history, plan baselines, and SQL profiles.。
You need to identify the combinations of the Windows operating system and SQL Server 2005 version that will be the most appropriate for the new R&D configuration， which will include the Research， Parts， and Engineering databases.Which two combinations will be the most appropriate？（） Windows Server 2003 Enterprise Edition with SQL Server 2005 Enterprise Edition。 Windows Server 2003 Datacenter Edition with SQL Server 2005 Enterprise Edition。 Windows Server 2003 Standard Edition with SQL Server 2005 Enterprise Edition。 Windows Server 2003 Enterprise Edition with SQL Server 2005 Standard Editio。
Which command starts Workload Manager？（）
