When we listen to a speech, we hear the end of one word flow straight into the beginning of the next. This phenomenon of joining words together is called linking.
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Linking is natural in English speech. To make natural linking, it is important to say groups of words in one breath and keep your voice going from one word to the next.
A. 对
B. 错
()是指网络数据交换而制定的规则、约定与标准。
A. 网络协议
B. 接口
C. 体系结构
D. 层次
ChinaNet指的是()
A. 中国公用计算机互联网
B. 中国教育和科研计算机网
C. 中国科学技术网
D. 国家公用经济信息通信网络
用8位来标识网络号,24位标识主机号的IP地址类别为()
A. D类
B
C. A
D. C