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
Since 1875, when Alexander Graham Bell first discovered how to send the human voice along wires, the telephone has been one of t
Since 1875, when Alexander Graham Bell first discovered how to send the human voice along wires, the telephone has been one of t
admin
2013-11-20
43
问题
Since 1875, when Alexander Graham Bell first discovered how to send the human voice along wires, the telephone has been one of the world’s most utilized and essential methods of communication. The first telephone exchange in America was established in 1878 and served a total of 21 people. At that time, operators would answer a call and connect two parties by completing an electrical circuit. Little could those operators envision that, one century later, calls would be transmitted along optical fibers and, soon after, would become totally wireless and portable. The idea of orbiting satellites picking up millions of calls and relaying them across the planet would have been unimaginable.
Select the sentence that establishes the scope of the earliest telephone communications.
选项
答案
"The first telephone exchange... served a total of 21 people."
解析
The best answer is: The first telephone exchange in America was established in 1878 and served a total of 21 people. This sentence establishes scope by showing the limited circle of early users.
转载请注明原文地址:https://kaotiyun.com/show/hAjO777K
本试题收录于:
GRE VERBAL题库GRE分类
0
GRE VERBAL
GRE
相关试题推荐
Walkingthroughthewoodsalonecanbeafrighteningprospectforakid,butnotfor7-year-oldMatthewofPortland,Oregon.He
It’swrongtojudgepeopleonlyaccordingtotheirfamily______.
Thereisnoreasonwhyyoushouldtellthem______thatyouaregoing.
Evans:Ijustreceivedaletterfromoneofmyoldhighschoolbuddies.Danae:【D5】______Evans:Well,actuallyIhaven’t
Nooneknowshowmanlearnedtomakewords.Perhapshebeganbymakingsoundslikethosemadebyanimals.Perhapshegruntedlik
TheidealrurallifestylereflectedintheartandliteratureisagreatcharacteristicinChinesecivilization.Itislargelya
Longbusridesareliketelevisionshows.Theyhaveabeginning,amiddle,andanend—withcommercialsthrownineverythreeor
________,worksongsoftenexhibitthesongcultureofapeopleinafundamentalform.
A、21/58B、58/21C、21D、42E、58DTodividebyafraction,justflipthetopandbottomandmultiply.Soturnsinto(3×7)+(7×3),
随机试题
Task2A.advertiserB.culturalbarriersC.targetaudiencesD.advertisingdecisionsandbudgetsE.amajorforceF.them
A.绞股蓝B.红景天C.刺五加D.灵芝具有益气健脾,清肺止咳,活血化瘀功效的药物是
不能与氟化亚锡同时使用的药物是
偿还期在一年内或超过一年的一个营业周期内的企业债务称为( )。
利用物业共用部位、共用设施设备进行经营的,应当在征得()的同意后,按照规定办理有关手续。
感觉寄存器只能将来自各个器官的信息保持几十到几百毫秒的记忆被称为_____记忆。
根据各组对话内容,从下面提供的5个选项中选出能填入空白处的最佳诜项,并将该选项前的字母填写在答题卡相应的位置上A.OK.HereyouareB.WeatherC.Don’tworryD.What’stheproblemE.Itdoes
通常认为左撇子比右撇子更容易出事故。这是一种误解。事实上,大多数家务事故,大到火灾、烫伤,小到切破手指,都出自右撇子。以上哪项最为恰当地概括了上述论证中的漏洞?
Duringthefirsthalfoftheseventeenthcentury,whenthenationsofEuropewerequarrelingoverwhoownedtheNewWorld,theD
A、He’stootalkativetobeaboss.B、Hedoesn’tsupporttheprogramatall.C、Heshouldn’tshowsupportonlyinwords.D、He’sgo
最新回复
(
0
)