下列有关Windows7操作系统中鼠标使用设置的说法，正确的是（）

A、可以设置调整鼠标指针的移动速度

B、鼠标左右键的使用功能可以互换

C、鼠标的左右键功能可以相同

D、可以设置调整鼠标键的双击速度

How do you enable interface fe-0/0/0 under the [edit protocols isis] level to form both a Level 1 and Level 2 adjacency?（）

A、set interface fe-0/0/0.0

B、set interface fe-0/0/0.0 all level

C、set interface fe-0/0/0.0 level 3 enable

D、set interface fe-0/0/0.0 level 1 level 2

What would indicate intra-partition parallelism in an Optimizer Plan?（）

A、BTQ  

B、LTQ  

C、IP  

D、DTQ

Which three statements about performance analysis by SQL Performance Analyzer are true? （）(Choose three.)

It detects changes in SQL execution plans.

It produces results that can be used to create the SQL plan baseline.

The importance of SQL statements is based on the size of the objects accessed.

It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.

It shows only the overall impact on workload and not the net SQL impact on workload.

Which action(s) will cause a compression dictionary to be removed from a table?（）

A、Set the table COMPRESS attribute to NO.  

B、Set the table COMPRESS attribute to NO; run REORG against the table.  

C、Set the table COMPRESS attribute to NO; run INSPECTRESETDICTIONARY against the table.  

D、Set the table COMPRESS attribute to NO; run RUNSTATS against the table.

你现处于项目的规划阶段，你的项目赞助商要求你提供从今天算起两周的准确的成本估算你会使用下列哪种技术向她提供最准确的成本估算（）

A、自下而上

B、类比

C、自上而下

D、实现价值