单项选择题

The idea of an hour without TV is NOT radical because

A．TV is very popular among people for only twenty-five years.
B．TV is an electronic baby-sitter.
C．we might get better shows.
D．radio involves the listener's imagination.

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单项选择题

Experts such as the so-called insiders

A．usually have unbiased opinions.
B．can also be prejudiced in their judgment.
C．are reliable observers.
D．do not have correct information at all.

单项选择题

The failure to talk to each other causes all of the following EXCEPT

A．the high divorce rate.
B．a real family hour.
C．the generation gap.
D．some forms of metal illness.