注意：此页面搜索的是所有试题
() can be regarded as a general-purpose digital network capable of supporting a wide range of services such as voice, data and image.
A.Local area networks
B.Integrated services digital networks
C.Packet switching networks
D.Mobile communication networks
A.Local area networks
B.Integrated services digital networks
C.Packet switching networks
D.Mobile communication networks
参考答案
