题目内容

______is a form of signal transmission in which one communication channel carries several transmission at the same time.

A. Braodcaster
B. Microwave
C. Multiplexing
D. Coaxial cable

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The method of dividing the medium into communication channel is called ______.

A. EMI
B. TDM
C. FDM
D. PCM

Transmission media are classified as wired and _________.

A. the telephone line
B. the twisted pair cable
C. the optical fibre
D. wireless

______has a inner conductor surrounded by a non-conductive dielectric insulating material.

A coaxial cable
B. A twisted pair cable
C. An optical fibre
D. A multiplexing

男子单打有58人，进行单淘汰赛。请问，该比赛的位置数为58个。

A. 对
B. 错