首页
登录
职称英语
Where was the first telephone service in America established? [br] [originaltex
Where was the first telephone service in America established? [br] [originaltex
游客
2024-10-07
32
管理
问题
Where was the first telephone service in America established? [br]
The first telephone service in North America began on the East Coast in the latel9th century. All of the calls arriving in New York were muted to the office of the early Bell Company. In turn, the Bell Company would switch the calls through a manual switchboard from New York to their destination for the charge of one penny per call. Later in the century, telephone services were established between Chicago and Boston and between Washington and Philadelphia. In 1910 the Bell Company changed from a privately help company to a publicly help corporation. The new company increased the number of telephone switchboards and introduced the use of electronic switches instead of manual operators. It was very expensive fro people in rural areas of the west to set up phone service though. In order to lower the prices of the telephone services, the United States government forced the telephone company to allow local telephone companies to offer competing services. The telephone service that started in American over a hundred years ago has developed into the most sophisticated communications network in the world.
选项
A、Manual switchboards.
B、Reading manuals.
C、Electronic switchboards.
D、Voice switches.
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3791483.html
相关试题推荐
MacStiofaindied_________.[originaltext]Theformerleaderoftheso-called
Nigeria’sNationalSecurityAdviserhasbeenfiredbecause[br][originaltext]
Nigeria’sNationalSecurityAdviserhasbeenfiredbecause[originaltext]Nig
Whatdoesthenewscover?[originaltext]Americansarecelebratingthe4tho
AccordingtotheresearchbyNASA,anafternoonnap______.[br][originaltext]
AccordingtotheresearchbyNASA,anafternoonnap______.[br][originaltext]
AccordingtotheresearchbyNASA,anafternoonnap______.[br][originaltext]
AccordingtotheresearchbyNASA,anafternoonnap______.[originaltext]T
WhenisThanksgivingDayinAmerica?[br][originaltext]ThanksgivingDayis
Whereisthemancallingto?[br][originaltext]W:Goodmorning,canIhelpyou
随机试题
Onceyouownanoption,therearethreemethodsthatcanbeusedtomakeap
Intheinterestoflightnessofweight,everythingyoucarryinyourpacksh
[originaltext]ResearchersatHarvardMedicalSchool’saffiliatedHebrewSen
Lookingbackonmychildhood,Iamconvincedthatnaturalistsarebornandn
以短期金融工具为媒介进行的、期限在一年以内(含一年)的短期资金融通市场是()
A.胞浆 B.肝脏 C.乳腺 D.线粒体 E.肾脏糖的有氧氧化第二阶段的
根据《票据法》的规定,持票人对支票出票人的票据权利必须在法定期限内行使。该期限为
从所给四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
()具有可变和浮动的特点。A:奖金 B:加班费 C:补贴 D:津贴
某一细胞群体杀伤肿瘤细胞机制为:①释放溶酶体酶直接杀伤;②ADCC效应;③分泌T
最新回复
(
0
)