You are a database administrator for your company. You are responsible for a SQL Server 2005 database that has several indexes. You need to write a stored procedure that checks the indexes for fragmentation. Which Transact-SQL statement should you use？（） A: DBCC DBREINDEX B: SELECT * FROM sys.dm_db_index_physical_stats C: DBCC INDEXDEFRAG D: SELECT * FROM sys.indexes

Which indexes are economic indexes of Rankine Cycle ( ) A: Thermal efficiency B: Coal rate C: Heat rate D: Steam rate

绘制系统零极点分布图的Matlab命令为（ ）。 A: zpmap ( sys ) B: zpkmap ( sys ) C: pzmap ( sys ) D: pzkmap ( sys )

在以下windows文件路径中（）采用了相对路径。 A: win7\sys B: C:\win7\sys C: \win7\sys D: D:\win7\sys

下列文件名正确的是（ ）。 A: sys te123.bat B: sys?te.bat C: sys<>te.bat D: sys te*.bat

Indexes are _______. A: primary sources B: secondary sources C: tertiary sources

In Access, you can only create duplicate indexes for primary keywords.

【单选题】在Windows 7中,下列正确的文件名是()。 A. Sys tem123.bat B. sys?tem.bat C. sys<>tem.bat D. sys1︱tem123

Which of the following citation indexes was not originally published by the Institute for Scientific Information (ISI)?

防止系统对ping请求做出回应，正确的命令是：（）。 A: echo0>/proc/sys/net/ipv4/icmp_ehco_ignore_all B: echo0>/proc/sys/net/ipv4/tcp_syncookies C: echo1>/proc/sys/net/ipv4/icmp_echo_ignore_all D: echo1>/proc/sys/net/ipv4/tcp_syncookies