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
2023-07-01
24
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/2799557.html
相关试题推荐
[originaltext]M:I’msorry,madam.Thecoachissomewhatbehindschedule.Take
[originaltext]M:I’msorry,madam.Thecoachissomewhatbehindschedule.Take
[originaltext]M:I’msorry,madam.Thecoachissomewhatbehindschedule.Take
[originaltext]W:I’msickofbeingasalariedemployee.Whydon’twepoolours
[originaltext]W:I’msickofbeingasalariedemployee.Whydon’twepoolours
[originaltext]W:I’msickofbeingasalariedemployee.Whydon’twepoolours
[originaltext]W:I’msickofbeingasalariedemployee.Whydon’twepoolours
[originaltext]W:I’msickofbeingasalariedemployee.Whydon’twepoolours
[originaltext]W:Iheardthatyouhadtakenanoptionalcourselastsemester.H
[originaltext]W:Iheardthatyouhadtakenanoptionalcourselastsemester.H
随机试题
OpinionpollsrepeatedlytellusthattheonlythingAmericansworryaboutm
PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbythep
Therearetwotypesofpeopleintheworld.Althoughtheyhaveequaldegrees
以下哪项关于信贷风险评估的说法是正确的?Ⅰ.某借款偿还贷款的意愿可从其声誉得到某
A.砂粒体 B.淀粉样物质 C.滤泡高度扩张,内含大量的胶质 D.滤泡增生
患者男,70岁,有高血压病史4年,最高血压为170/105mmHg,现因头晕就诊
天花是通过下列哪一种疫苗的应用而被消灭的()A.天花病毒疫苗B.灭活疫苗C.痘
为了日益尖锐的阶级矛盾,晚清政府不得不抛出所谓的《重大信条》,新实行君主立宪
企业经常采用的人力资源需求预测方法主要有()。A:管理人员判断法 B:德尔菲法
甲公司2×20年10月1日,与乙公司签订一项处置协议,将甲公司一家门店整体转让给
最新回复
(
0
)