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
2010-04-24
52
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 late 19th century. All of the calls arriving in New York were routed to the office of the early Bell Company. In turn, the Boll 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 D. C. and Philadelphia. In 1910 the Boll Company changed from a privately held company to a publicly held corporation.
The new company increased the number of telephone switchboards and introduced the use of electronic switches in-stead of manual operators. Later in the 20th century as cables were laid across the ocean floor, this made communication with different continents possible, it was very expensive for people in the 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. When the private "baby bells" were allowed to operate, the prices of telephone service fell dramatically.
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/jQ2K777K
0
专业英语四级
相关试题推荐
RichpeopleinBritainhavebeenhuntingfoxes
Whatdevelopmentcausedadeclineintheuseofrailroads?
Whatdoesthewomanimplyabouthercar?
What’sthechangeinAmericanfamilyinthe21century?
Educatortodayaremoreandmoreoften【C1】______tosaythatcomputerliteracyisabsolutelynecessaryforcollegestudents.Ma
Oneofthemostcriticalproblems【C1】______blackandotherminorityAmericanstodayisthedifficultyofentering【C2】______soc
Oneofthemostcriticalproblems【C1】______blackandotherminorityAmericanstodayisthedifficultyofentering【C2】______soc
Thefitnessmovementthatbeganinthelate1960sandearly1970scenteredaroundaerobicexercise.Millionsofindividualsbeca
Amillionmotoristsleavetheircarsfilledupwithpetrolandwiththekeysintheignitioneveryday.Thevehiclesaresitting
随机试题
脑震荡的主要临床表现有
10(6)kV变电所高压配电室内各种通道正确的是()。
城市用地适用性的评定要因地制宜,特别是抓住对用地影响最突出的()要素,进行重点的分析与评价。
爆破有害效应主要包括()。
以下发展战略可选择的途径中,属于内部发展的是()。
若法定存款准备率是20%,商业银行最初吸收的存款是100亿元,则银行能够创造的货币总量为()。
养蜂人将蜂箱放在场头,蜜蜂在附近采集花粉。后养牛人将牛拴在离蜂箱5米远处,不久牛被蜜蜂蜇死。该案中关于过错的认定,说法正确的是()。
扎根理论是运用系统化的程序,针对某一现象来发展并归纳式地引导出扎根的理论的一种定性研究方法。研究者在研究开始之前一般没有理论假设,直接从实际观察入手,从原始资料中归纳出经验概括,然后上升到理论。根据上述定义,下列各项中不属于扎根理论的是:
某人乘船逆流而上,在途中不慎将一救生圈掉入水中,在继续前进了20分钟后才发现,于是返回追寻。待追到救生圈时,它已经顺流而下漂到距离落水处2千米的地方。请问,此人从发现救生圈丢失到找回救生圈共用了多长时间?()
____ofover5%areattractiveifthedollarreallyisgoingtostabilize.
最新回复
(
0
)