单项选择题

Cable TV is becoming more and more popular because ______.

A．it is free of charge
B．it can provide more programs
C．it provides all TV users good pictures
D．TV sets with regular antennas can also have a good reception through CATV

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热门试题

单项选择题

Of the following, which is NOT the way TV signals travel

A．In a curve.
B．In all directions.
C．In a straight line.
D．Toward the horizon.

单项选择题

From the first paragraph we know that ______.

A．most people use cable television
B．"community antenna" is another name for "regular antenna"
C．a community antenna is used for cable television
D．regular antennas cannot pick up TV signals programs