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
2023-06-28
29
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/2789560.html
相关试题推荐
[originaltext](22)Californiaisinthemidstoftheworstdroughtonrecor
[originaltext](22)Californiaisinthemidstoftheworstdroughtonrecor
[originaltext]Considerthefactthatcropsgenerallyproduceseveralhundre
[originaltext]Thisletterishandwritten,anditisbyasurvivoroftheTi
[originaltext]Thisletterishandwritten,anditisbyasurvivoroftheTi
[originaltext]M:Hello,Ihaveareservationfortonight.W:Yourname,please.
[originaltext]M:Hello,Ihaveareservationfortonight.W:Yourname,please.
[originaltext]W:AreyouallreadyforChristmas?M:Areyoukidding?(8)Ihaven
[originaltext]Anyideawhattheworld’sbestknownEnglishlanguageis?Bef
[originaltext]Anyideawhattheworld’sbestknownEnglishlanguageis?Bef
随机试题
Smokingisconsidereddangeroustothehealth.Ourtobacco-seller,Mr.Johns
AjuryinNorthernCaliforniahasfoundaphysician【C1】______forelderabus
Likemanyworkers,IvelisseRivera,aphysicianatCommunityHealthCenter,
WhendoingbusinessinNewZealand,youhavetodressformally.Menshouldw
下列命题中不属于僧肇的思想体系的是( )。A.物不迁论 B.不真空论 C.
在创作过程中,形式规范的预期作用,具体表现为()A.对想象的诱导 B.对想象
此题考查线性空间部分的内容,可简单理解为考查求矩阵的秩和Schmidt正交化方法。
张某委托刘某购书,并将一本存有.1.3万元人民币的全国通兑活期存折交给刘某用于
下列关于二腹肌的描述,正确的是A.为舌骨下肌群 B.为颏舌骨肌的拮抗肌
根据《标准设计施工总承包合同》,关于竣工后试验的说法,正确的有()。A.发包人
最新回复
(
0
)