The Romans neglected pure theories because______.
A. they were fond of constructions
B. they were busy invading other countries
C. they spend their time inventing computing machines
D. they accomplished practical wonders
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Which of the following statements can best describe the situation on the moon？
A. It is not so quiet as on the earth.
B. It is absolutely quiet on the moon.
C. Wind is not so strong as on Mount Jolmo Lungma.
D. It is quiet on the moon, but sometimes it is a bit noisy.
A．modifiedB．slashedC．smashedD．withdrew
A. modified
B. slashed
C. smashed
D. withdrew
A．TCPB．IPC．HTFPD．UDP
A. TCP
B. IP
C. HTFP
D. UDP
HTFP是WWW的核心，它是一个(59)协议，当访问一个URL为http://www. ccidedu.com.cn/index.htm的网页时，浏览器首先向(60)请求解析http://www.ccidedu. com. cn的IP地址。获得解析后的IP地址后，浏览器通过(61)端口与服务器建立(62)连接。随后浏览器发送取文件命令(63)。服务器响应并将文件index.htm发送给浏览器，最后释放连接。
A. 面向事务的客户
B. 面向对象的服务器
C. 面向事务的客户服务器
D. 面向对象的客户服务器
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