What are three fundamental differences between LANs and WANs.
问题描述：
What are three fundamental differences between LANs and WANs.
最好能够用英文解答,
答
LAN:Local Area Network 电脑之间比较近
MAN:metropolitan area network 一座楼内或相邻的
WAN:wide area netwrok 很大哦,internet 也算是WA