更多"Satellite Ⅳ Today, you see compa"的相关试题:
[单项选择]Satellite Ⅳ
Today, you see compact satellite dishes perched on rooftops all over the United States. Drive through rural areas beyond the reach of the cable companies and you’ll find dishes on just about every house. The major satellite television companies are bringing in more customers every day with the lure of movies, sporting events and news from around the world.
The Broadcast TV Problem
Conceptually, satellite television is, a lot like broadcast television. It’s a wireless system for delivering television programming directly to a viewer’s house. Both broadcast television and satellite stations transmit programming via a radio signal. Broadcast stations use a powerful antenna to transmit radio waves to the surrounding area. Viewers can pick up the signal with a much smaller antenna.
The main limitation of broadcast television is range. The radio signals used to broadcast television shoot out from the broadcast antenna in a straight line.
A. a powerful antenna
B. a much smaller antenna
C. satellite dishes
D. cable
[单项选择]
{{B}}Satellite Ⅳ{{/B}}
Today, you see compact satellite dishes perched on rooftops all over the
United States. Drive through rural areas beyond the reach of the cable companies
and you’ll find dishes on just about every house. The major satellite television
companies are bringing in more customers every day with the lure of movies,
sporting events and news from around the world. {{B}}The Broadcast
TV Problem{{/B}} Conceptually, satellite television is, a lot like
broadcast television. It’s a wireless system for delivering television
programming directly to a viewer’s house. Both broadcast television and
satellite stations transmit programming via a radio signal. Broadcast stations
use a powerful antenna to transmit radio waves to the surrounding area. Viewers
can pick up the signal w A. a powerful antenna B. a much smaller antenna C. satellite dishes D. cable
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