首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、All classrooms use cable television. B、City people can see extra programs. C、The charge of cable is much lowered. D、TV signals
A、All classrooms use cable television. B、City people can see extra programs. C、The charge of cable is much lowered. D、TV signals
admin
2019-09-01
51
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、All classrooms use cable television.
B、City people can see extra programs.
C、The charge of cable is much lowered.
D、TV signals can be received more easily.
答案
B
解析
短文提到,有线电视进入城市后,给城市观众带来了普通天线无法提供的额外节目,故B正确。
转载请注明原文地址:https://kaotiyun.com/show/1KZ7777K
0
大学英语四级
相关试题推荐
WorkingtoImprovetheConditionsofEvergladesNationalParkA)WhenmanypeoplethinkofFlorida,imagesofsandycoastlin
WorkingtoImprovetheConditionsofEvergladesNationalParkA)WhenmanypeoplethinkofFlorida,imagesofsandycoastlin
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’spopulationcouldhaveincreasedtoaround12billio
ItcameassomethingofasurprisewhenDiana,PrincessofWales,madeatriptoAngolain1997,tosupporttheRedCross’scamp
Howdidtheearlypeopledotheircounting?Atfirst,theydidalltheircountingwithsmallstones.Later,theylearnedtouse
A、Sleepingproblems.B、Stomachproblems.C、Bademotions.D、Highbloodpressure.B短文提到,长期过量喝咖啡会导致胃部和牙齿出现问题。B对应其中一个负面影响,故正确。
Forthispart,youareallowed30minutestowriteashortessayonthefollowingquestion.Youshouldwriteatleast120words
A、SheisthemanageroftheTokyobranchbank.B、ShestudieseconomicsinJapan.C、SheworksforaJapanesebankinAmerica.D、S
Fordecades,biobankinghasbeenheldupasanessentialresearchtool.Whilefewdoubtthescientificvalueofhavingcatalogue
A、Shestoppedbeingahomemaker.B、Shebecameafamouseducator.C、Shebecameapublicfigure.D、Shequitdrivingaltogether.C
随机试题
Hewastoldthatthestranger(wait)________forhimfortwohours.
异常血红蛋白的含义是
下列属于基金运作内容的有( )。
某银行某日超额准备金短缺,通过同业市场拆借资金,当日挂牌利率为9.925%,拆出资金200万元,期限为1天,固定上浮比率为0.075%,拆入到期利息是()。
王某2006年5月份收入情况如下:(1)取得劳务报酬收入50000。(2)取得银行存款利息收入2000元:国库券利息收入500元。(3)取得稿酬收入3800元。(4)取得特许权使用费收入20000元,并将其中的4500元通过民政部门捐赠给希望工程基
咨询师张晴对小真进行心理辅导时,非常心疼小真的遭遇,并将其看作自己的孩子。这属于()。
欣赏是用眼睛去观察,用耳朵去聆听,用心灵去感悟。请以“学会欣赏”为题,发表一篇演讲。
2012年,全国国内旅游人数29.57亿人次,比上年增长12.0%。其中,城镇居民19.33亿人次。2012年,全国国内旅游收入22706.22亿元人民币,比上年增长17.6%。2012年全年入境外国游客人数比上年增长0.3%,其中,亚洲市场人境人数166
A、买光盘B、办签证C、打网球D、买茶叶A男的问女的“你要的光盘买到了吗?”,可知女的想买光盘,所以选A。
A、 B、 C、 A题目为叙述自己在老板回来之前不可以离开办公室这一事实的陈述句。
最新回复
(
0
)