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
Where was the first telephone service in America established?
Where was the first telephone service in America established?
admin
2013-10-11
14
问题
Where was the first telephone service in America established?
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:https://kaotiyun.com/show/i9GK777K
0
专业英语四级
相关试题推荐
AccordingtoPakistaniPresident,thechancesofthetwocountriesgoingtowarwere______
WhowontheWorldCup1998footballgame?WhathappenedattheUnitedNations?Howdidthecriticslikethenewplay?【C1】______
Therearetwobasicwaystoseegrowth:oneasaproduct,theotherasaprocess.Peoplehavegenerallyviewedpersonalgrowtha
WriteonANSWERSHEETONEanoteofabout50--60wordsbasedonthefollowingsituation:YouwerelateforclassYesterday.W
Hewouldhavetoliveundertheir__________________forthenexttenyears.
Whenhetriedtomakea______,hefoundthatthehotelthathewantedwascompletelyfilledbecauseofaconvention.
Theyovercameallthedifficultiesandcompletedtheprojecttwomonthsaheadoftime,______issomethingwehadnotexpected.
AchievingahighdegreeofproficiencyinEnglishasaforeignlanguageisnotamysterious______withoutscientificbasic.
Thereismuchmore______equalitybetweenparentsandchildrenthaninothercountries.
Oneofthemanypleasuresofwatching"MadMen",atelevisiondramaabouttheadvertisingindustryintheearly1960s,isexamin
随机试题
图7所示药材是()。
溶血性黄疸的特点是
()是用来衡量单位工质具有热力势能大小的一个尺度。
从资产评估角度上看,企业价值是由( )决定的。
下列各项中,属于回收期法优点的是()。
对风能发电优势表述不准确的一项是______。下列对造成“风力发电在各国电力来源中所占比例很低”的原因的概括,不恰当的一项是______。
在中国古代历史上,曾建立过统一的全国统治的少数民族有()。
日常生活中,我们经常听到“言必信,行必果”的说法。请运用合同法的基本原则和合同效力的理论对该说法加以辨析。
[2015年第29题]人类经历了上百万年的自然进化,产生了直觉、多层次抽象等独特智能。尽管现代计算机已经具备了一定的学习能力,但这种能力还需要人类的指导,完全的自我学习能力还有待进一步发展。因此,计算机要达到甚至超过人类的智能水平是不可能的。以下哪项最可能
中国革命道德的主要内容包括()
最新回复
(
0
)