【简答题】局域网从基本通信机制上选择了与广域网完全不同的方式,即从方式改变为共享介质方式和交换方式。
【简答题】20世纪60年代提出实行“两种教育制度,两种劳动制度”主张的是( )。
【单选题】Scotland
A.
was dominated by England for seven hundred years
B.
dominated England for seven hundred years
C.
kept out English invaders for seven hundred years
D.
became part of England for seven hundred years
【单选题】广域网和局域网在基本通信机制上使用了完全不同的方式,其中广域网是采用()。
【简答题】局域网与广域网一个重要的区别在于:从基本通信机制上选择了与广域网完全不同的交换技术,即从存储转发改变为共享介质的( )。
【单选题】目前在交换式局域网中,除通信线路外最主要、最基本的通信设备是 ?
【单选题】Tibet has been a part of China since _________ years ago.
【简答题】阅读理解。 The Internet has become part of age life. There's a report on 3 375 students in seven Chinese cities. It says that 38% of them believe they use the Internet often. While most of them get use...