单项选择题

What is the literal meaning of the word "television"

A．Medium of the States.
B．Sight from a distance.
C．Airwave transmission.
D．Vehicle for communication.
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单项选择题
Which of the following is NOT mentioned in the passage as a function of electronics in television transmissions
A．The conversion of an image into electronic impulses,
B．The sending of impulses through a wire cable.
C．The changing of one image into another image.
D．The feeding of impulses into a receiver.
单项选择题
Which of the following statements about the relationship between television and its viewers can best be inferred from the passage
A．Viewers do not take an active role in watching television.
B．Viewers would prefer increased news coverage.
C．Viewers like to use television to reach other human beings.
D．Viewers have grown tired of television.
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