题目内容

As the bandwidth increased to 550 MHz, the number of TV channels increased by ______compared with the early cable systems.

A. 24
B. 33
C. 58
D. 91

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What's the purpose of the manufacturers' adding a switch to most new television sets？

A. To make more money.
B. To spread the cable system.
C. To make ordinary viewing possible.
D. To adapt to the new development of the cable system.

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A．She needs more time to get ready for the dinner.B．She thought the dinner was at anot

A. She needs more time to get ready for the dinner.
B. She thought the dinner was at another time.
C. She forgot about the plans she made for dinner.
D. She won't be able to go to dinner.

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In the United States, cable television had come to nearly fifty percent of the homes by ______.

A. 1948
B. 1940s
C. 1970s
D. 1990s

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A．40 minutes.B．50 minutes.C．45 minutes.D．55 minutes.

A. 40 minutes.
B. 50 minutes.
C. 45 minutes.
D. 55 minutes.

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As the bandwidth increased to 550 MHz, the number of TV channels increased by ______compared with the early cable systems.

A. 24 B. 33 C. 58 D. 91

What's the purpose of the manufacturers' adding a switch to most new television sets？

A．She needs more time to get ready for the dinner.B．She thought the dinner was at anot

In the United States, cable television had come to nearly fifty percent of the homes by ______.

A．40 minutes.B．50 minutes.C．45 minutes.D．55 minutes.

A. 24
B. 33
C. 58
D. 91