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
2010-03-19
41
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 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 D.C. and Philadelphia. In 1910 the Bell 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 instead 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/DH9K777K
0
专业英语四级
相关试题推荐
Allthepeopleinthestadiumcheeredupwhentheysawhundredsofcolorfulballoons______slowlyintothesky.
Attentiontodetailsissomethingeveryonecanandshoulddo-especiallyinafightjobmarket.BobCrossley,ahumanresources
TheCarnegieFoundationreportsaysthatmanycollegeshavetriedtobe"allthingstoallpeople".Indoingso,theyhaveincre
Inreturnfortheirhospitality,Mr.andMrs.Browndecidedtoholdapartyto________theirneighbours.
Theterm"mummy"wasusedtodescribe______.
Whatkindofrobotsdoesthemanreferto?
Seventeenth-centuryhousesincolonialNorthAmericaweresimplestructuresthatwereprimarilyfunctional,carryingovertradit
Thefinancialproblemofthiscompanyisfurther______bytheriseininterestrates.
Asthegroupofpersons________togetherinaconversationalknot,eachindividualexpressedhispositioninthegroupbywhere
AccordingtoPakistaniPresident,thechancesofthetwocountriesgoingtowarwere______
随机试题
患者男,60岁。咳嗽,咯血,体重减轻两个月。吸烟史40年,每天1包。1个月前胸部X线示右肺中叶肺不张,经抗生素治疗没有明显效果。通过后来的一些证据诊断为右肺癌,准备择期手术。患者术中行单肺通气会出现低氧性肺血管收缩(HPV),试问会抑制HPV的麻醉药物
A.完全瘫痪B.肌肉可收缩,不能产生动作C.肢体能抬离床面,不能抗阻力D.能抗阻力动作,但较正常差E.肢体能在床面上移动,不能抬起
经济效益计算的原则是()。
石方开挖中,常用的爆破方法有()等。
隧道穿越的岩层主要是坚硬岩,岩体较完整,块状或厚层状结构;该隧道的围岩分级为()。
关于大理石特性的说法,正确的是()。
对金融业实行分业监管体制的缺陷为()。
在责任成本管理体制下,下列关于成本中心的说法错误的有()。
AE制度又叫()。
在窗体上画一个名称为Command1的命令按钮和两个名称分别为Text1、Text2的文本框,然后编写如下事件过程:PrivateSubCommandl_Click()n=Text1.Text
最新回复
(
0
)