常见视频文件有MPG、AVI、WMV、FLV……。
A、对
B、错
191.108.192.1属于哪类IP地址？（）
A、E类
B、A类
C、B类
D、C类
E、D类
You run a script that completes successfully using SQL*Plus that performs these actions: 1. Creates a multitenant container database (CDB) 2. Plugs in three pluggable databases (PDBs) 3. Shuts down the CDB instance 4. Starts up the CDB instance using STARTUP OPEN READ WRITE Which two statements are true about the outcome after running the script?（）
AThe seed will be in mount state.
BThe seed will be opened read-only.
CThe seed will be opened read/write.
DThe other PDBs will be in mount state.
EThe other PDBs will be opened read-only.
FThe PDBs will be opened read/write.
在以下Windows操作系统中，（）支持ASP.NET。
AWindows98
BWindows2000
CWindowsXP
DWindowsServer2003
正常退出Windows 7，正确的操作是（）。
A、在任何时刻关掉计算机的电源
B、选择“开始”菜单中“关闭计算机”并进行人机对话
C、在计算机没有任何操作的状态下关掉计算机的电源
D、在任何时刻按Ctrl+Alt+Del键
A mail server keeps shutting down. The administrator gets an error message over temperature error. Which of the following should the administrator replace FIRST？（）
A、 Power supply fan
B、 CPU fan
C、 Heat sink
D、 Case fan