问题
单项选择题
A local area network (LAN) is the communication of a number of computers by (68) connecting to each one in a single location, usually a single floor of a building or all the computers in a small company.
A.line
B.cable
C.copper
D.copper cash
答案
参考答案:B
解析:
[分析]: 一个局域网(LAN)实现在某个单一区域中(通常是某个建筑物中的一层或者是一家小型公司的全部计算机),通过电缆彼此连接的多台计算机之间的数据通信。