首页
登录
职称英语
[originaltext] CATV is a short way of saying "community antenna television."
[originaltext] CATV is a short way of saying "community antenna television."
游客
2024-02-09
5
管理
问题
CATV is a short way of saying "community antenna television." But "cable television" is the term most people use. Cable television allows viewers to receive TV programs that they cannot pick up with their regular antennas.
Television signals do not follow the curve of the earth. They travel in straight lines in all directions. Signals from a TV station move toward the horizon and then go into space. If you live only a few miles from a station, you may not get any picture at all.
CATV began in 1948. People in places far from TV stations shared the cost of putting up high antennas. A community antenna was usually placed on a hill, a mountain, or on a high tower. The antenna picked up TV signals and fed them into a small local station. From the station, thick wires called cables ran out to nearby homes. Each person using the cable paid a monthly charge.
CATV worked well, and soon new uses were found for it. Local stations could feed programs into empty channels that were not in use. People along the cable could have local news, weather reports, and farm and school news at no extra charge.
Today, cable television has moved into cities. It brings in extra programs that city viewers with regular antennas cannot see. It is also used in many classrooms throughout the country.
16. What does the speaker say about television signals?
17. What should people do if they used the cable?
18. What happens after cable television has moved into cities?
选项
A、Pay a monthly charge.
B、Pay a yearly charge.
C、Pay a daily charge.
D、Pay an hourly charge.
答案
A
解析
短文提到,有线电视用户要每月交费,故A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3435854.html
相关试题推荐
[originaltext]WhenIwasgrowingupinAmerica,Iwasashamedofmymother’
[originaltext]WhenIwasgrowingupinAmerica,Iwasashamedofmymother’
[originaltext]BobbyMoorewasafamousEnglishsoccerplayerwholedtheEn
[originaltext]BobbyMoorewasafamousEnglishsoccerplayerwholedtheEn
[originaltext]BobbyMoorewasafamousEnglishsoccerplayerwholedtheEn
[originaltext]W:Oh,Ken,Ihavebeenmeaningtotalktoyou.M:Hi,Denise!Wh
[originaltext]W:Oh,Ken,Ihavebeenmeaningtotalktoyou.M:Hi,Denise!Wh
[originaltext]M:Wanttogooutandgetsomethingtoeat?W:Ican’t.Ihavea
[originaltext]M:Wanttogooutandgetsomethingtoeat?W:Ican’t.Ihavea
[originaltext]Ifyouaresomeonewhotendstofocusonthenegative,[31]th
随机试题
Yearsago,doctorsoftensaidthatpainwasanormalpartoflife.Inpartic
Aslongasherparentscanremember,13-year-oldKatieHarthasbeentalking
数字化对发行环节的影响主要表现在()。A.提高了数字出版产品的发行速度和质量
临床实践证明,有效及合理的用药静脉滴注在:A、术前2小时 B、术前2天 C、
A.身热下利,胸脘灼热,舌红苔黄,脉数 B.往来寒热,胸胁苦满,苔黄,脉弦数有
临床所有测定LD的试剂中都含有的物质是A.NAD/NADHB.乳酸C.氢氧化钠D
(2018年真题)用青霉素治疗梅毒、钩端螺旋体病时能出现寒战、咽痛、心率加快等症
关于合同价款与合同类型,下列说法正确的是()。A:招标文件与投标文件不一致的地方
()设备较为简单,排水量大,降水较深A.轻型井点 B.喷射井点 C.回
知识点:右心衰竭 女,46岁。劳力性心慌,伴恶心,呕吐,食欲不振,水肿,可能会
最新回复
(
0
)