首页
登录
职称英语
[originaltext] Ever since Philo T. Farnsworth assembled the first television
[originaltext] Ever since Philo T. Farnsworth assembled the first television
游客
2023-09-11
39
管理
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、In the later 1920s.
B、In the mid-1950s.
C、In the 1970s.
D、In the mid-1980s.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3004468.html
相关试题推荐
[originaltext]TheterribledestructionoftheWorldTradeCenter,onSeptem
[originaltext]TheterribledestructionoftheWorldTradeCenter,onSeptem
[originaltext]Mostanimalsusemorethanonespeciesasfood.Therefore,th
[originaltext]W:Hi,Jack.Tomorrow’sthebigday!Youmustbeexcitedaboutg
[originaltext]Theworld’sfirstcompletelyautomaticrailwayhasbeenbuilt
[originaltext]Theworld’sfirstcompletelyautomaticrailwayhasbeenbuilt
[originaltext]Theworld’sfirstcompletelyautomaticrailwayhasbeenbuilt
[originaltext]Afableisashortstorywhichisnottrue.Itisastorytha
[originaltext]Afableisashortstorywhichisnottrue.Itisastorytha
[originaltext]M:Hey!Jenny,doyouwanttolivealongerlife?W:Why?Ofcour
随机试题
ConcreteAnotherthingtorememberinconnecti
Mind-controlledCarsA)AcarinGermanycanbesteeredw
Today’slectureisonthesubjectofPronunciationAchievementFactors.
下面关于场地标高与周边道路标高的关系说法正确的是( )。A.场地最低点标高应高
根据企业所得税法的规定,某企业同时具有境内、境外业务(企业境外业务都在同一国家)
水肿概念
银翘散中体现“去性取用”的是A.银花连翘 B.牛蒡子薄荷 C.荆芥
Thechangeinthatvillagewasmiraculou
星形连接对称三相负载,每相电阻为11Ω、电流为20A,则三相负载的线电压为:
(2015年)根据《生活垃圾填埋场污染控制标准》,与生活垃圾填埋场配套建设的生活
最新回复
(
0
)