AutoCAD的图形文件的格式是（）。
A、dwg
B、dwt
C、dws
D、dwf
You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?（）
Athe SQL text SQL
Bthe execution plan
Cthe execution context
Dthe execution frequency
Ethe system change number (SCN)
女性，62岁，因胆总管结石、胆管炎出现休克。该患者的休克类型是（）
A、低血容量性休克
B、感染性休克
C、过敏性休克
D、心源性休克
E、神经性休克
The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）
A、Either the -a or flag -b may be used, but not both.
B、If the flag -a is used then the flag -b also must be used.
C、One of the -a or -b flags must be used, but not both at the same time.
D、Both the flags may be used together, but neither are mandatory.
WWW服务器与客户端之间采用（）协议进行网页的发送和接收。
A、HTTP
B、URL
C、SMTP
D、HTML
Telnet提供的服务是（）。
A、远程登录
B、电子邮件
C、域名解析
D、寻找路由