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、There have been three major changes in TV technology since 1927. B、Basic TV technology nowadays is quite different from that o
A、There have been three major changes in TV technology since 1927. B、Basic TV technology nowadays is quite different from that o
admin
2010-07-14
47
问题
Ever since Philo T. Farnsworth assembled the first television set in his Indiana garage in 1927, the basic technological principles for bringing electronic pictures into the home have remained the same. There have been only two major changes in the way TV sets work: the introduction of color in 1954, and the shift from tubes to transistors in the 1970s.
Now a radical change is about to take place. Digital television—which uses a different method of signal transmission will significantly alter the way future television sets will look and perform.
The digital set, already on sale in Europe and scheduled to be introduced in the United States this fall, is a cross between a computer terminal and a TV set. Although the differences it will bring may not be dramatic, its improved quality will be increasingly appreciated, as zoom effects, stereo sound, and freeze-frame views of live shows become commonplace. Digital TV promises to give viewers a clearer, more consistent picture than has been available so far.
选项
A、There have been three major changes in TV technology since 1927.
B、Basic TV technology nowadays is quite different from that of the first TV set.
C、Digital TV sets incorporate computer technology.
D、Digital TV technology originated in the U. S.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/Hs7K777K
0
大学英语六级
相关试题推荐
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeopleareanxiousand【B1】;thatis,theyareexcessi
A、Howtobuyagoodcomputer.B、Howtoborrowacomputerfromthecompany.C、Thepriceofthecomputer.D、Thenewly-boughtcomp
TheEnvironmentalProtectionAgencyhassetlimitsfortheradiationpermittedtoleakfromaproposednuclearwasteburialce
A、ThebriefhistoryofCanadiantransportation.B、TheimportanceofwatertransportationinCanada.C、Theconditionoftransport
Forcenturiesthegypsieshavelivedasaunfetteredpeoplewhotraveled【S1】______throughhalfthecountriesofthew
MildweatherhasbroughtJapan’smuch-lovedcherrytreesinto【B1】______twoweeksearlythisyear,butnoteveryoneis【B2】__
Herearesomeofthemostcommonreasonskidshateschool—andstrategiestoputthembackontheroadtoSuccess.CopingWi
A、Sheasksthemantowaitforheratthetrainstation.B、Shewillcallthemanwhenshearrivesatthestation.C、Sheandthe
Manyapasserby______(据报道目击了昨天发生的那场事故).
A、Seeingafallingroundobject,B、Hearingabird-likesound.C、Observingabrightlight.D、Witnessingtheimpact.C信息明示题。男士说,目击
随机试题
某刊物不愿让别的刊物随意转载其刊物上发表的文章,下列做法哪些是可行的?()
甘寒,归肺肾肝,为清凉益阴之品,既能退虚热、凉血热、泄肺热,又略兼阴而生津苦凉,人肝心二经,既善清热解毒,又善凉肝息风止痉,还善清心豁痰开窍。主治热毒、痰热及肝热生风所致诸证
可较准确地反映实际水平,适用于市场经济条件的施工图预算编制方法是( )。
投标保证金一般最高不得超过()元人民币。
经产地检验检疫机构出具换证凭单的出口食品,口岸检验检疫机构查验时,如发现换证凭单已过了有效期,或货证不符时,必须重新报检和检验。 ( )
当今,休闲已然成为一种新的社会文化现象,它在满足人的全面自由发展的同时,也在调整着社会的经济结构,改变着传统的产业形态。尤其人的休闲消费为经济生活、文化生活、社会生活架起一条彼此相通的桥梁。因此,关注休闲、关注休闲带动的经济现象,应当是一个十分重要的课题。
在中国古代诗人眼中,大雁经常被视为书信的代名词,鸿雁传书是他们最为向往的意象之一,下列诗句中的大雁形象代表这一意象的是:
以机械化和电气化为动力的早期工业化国家,经历了一个漫长的积累过程,消耗了大量的矿产资源,英国、法国的情况就是如此。以机械化、电气化、电子化和信息化为“综合动力”,以“世界工厂”为主要特征的新兴工业化国家和地区,通过快速消耗能源和原材料,仅用了一半甚至更短的
【探马赤军】北京大学2005年中国古代史真题
两个或两个以上的模块之间关联的紧密程度称为()。
最新回复
(
0
)