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
(46)Picturephone service, which will become available commercially in the 1970s, will at first probably be used by large busines
(46)Picturephone service, which will become available commercially in the 1970s, will at first probably be used by large busines
admin
2012-09-10
81
问题
(46)Picturephone service, which will become available commercially in the 1970s, will at first probably be used by large business corporations.(47)It is already clear that "the next best thing to being there" is going to be a Picturephone call.
(48)This "new light", first produced by scientists in 1960, can beam continuously and with extraordinary intensity.(49)In other words, they are thinking of using light for the same purpose radio waves are used—to transmit telephone calls, TV programs, and data messages from one point to another. With the expansion of Picturephone service and highspeed data communications between computers, present message-carrying capacities may soon become inadequate. As it turns out to be technically and economically’ sound, the laser might prove to be a major breakthrough in telephone communications.
Current research in telephone communications is so extensive and changes are coming about so rapidly that no one can predict with accuracy what the telephone of tomorrow will look like.(50)。
A. But as Picturephone service becomes available, it will no doubt spread from the office to the home.
B. Instead of using light to see by, telephone researchers are thinking of ways to use light to communicate by.
C. For many people the most’ exciting development in recent years is Picturephone service.
D. One area that is being seriously considered is communications service "on the move".
E. But there is at least one prediction that can be made with assurance: There will be more and more telephones in the future, and they will be better ones.
F. Possibly the most significant research now being conducted is in the use of the laser beam in telephone communications.
选项
答案
F
解析
本段主要讲的是将激光用于通讯的研究。F句意为“当前正在进行的最重要的研究可能是把激光用于电话通信”,故将F句安于此处作为主题句。
转载请注明原文地址:https://kaotiyun.com/show/3vLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
YoungAdultsWhoExerciseGetHigherIQScoresYoungadultswhoarefithaveahigherIQandaremorelikelytogoontouni
CarThievesCouldBeStoppedRemotelySpeedingoffinastolencar,thethiefthinkshehasgotagreatcatch.Butheisinana
Whenvisitingmuseumsnowadays,peoplecantakepartinmanyactivities.Insciencemuseumstoday,peoplenolongerfeelstrang
Academicrecordsfromotherinstitutionsoftenbecomepartofauniversity’sofficialfileandcanneitherbereturnedtoastud
Accordingtothepassage,thepurposeofeffectivereadingwithhigherspeedismostlikelytohelpyou______.Accordingtoth
Theytriedtheirbesttoresolvetheresidualproblems.
ConsumerGoodsConsumerproductsaregoodsandservicesdestinedforthefinalconsumerforpersonal,family,orhouseholdus
FlyingtheHypertSkiesAlittleairplanehasgivennewmeaningtotheterm"goinghyper."TheHyper-Xrecentlybroket
TheMonarchbutterflytravels5,000kmeachyear.Inbadwinters,about70percentofthebutterfliescanstayalive.
A.electromagneticenergyB.electromagneticenergytravelsthroughspaceC.camefromthesunD.whenachangeint
随机试题
能抑制尿液的稀释和浓缩过程,并具有强大利尿作用的药物是
甲、乙、丙三人要成立一家有限责任公司,以下哪个不是成立公司的必备条件?()
某现浇钢筋混凝土框架一剪力墙办公楼,地上11层,各层计算高度均为3.6m。9度抗震设计时,结构总竖向地震作用标准值FEVK=24000kN,各楼层重力荷载代表值均为12900kN,顶层重力荷载代表值为13500kN,试问,顶层竖向地震作用标准值Fv11(
监理单位为承揽监理业务而编制的是()。
公安机关各警种之间的分工是根据各警种的()不同而划分的。
下列关于绝对感觉的描述正确的是()
当积差相关系数r1=0时,对两个变量之间关系的最佳解释是()
柳亚子在《题太平天国战史》中说:“楚歌声里霸图空,血染胡天烂漫红。煮豆燃萁谁管得,莫将成败论英雄。”其中对“煮豆燃萁”的评述正确的是()
AsinglenightoftakingthedrugEcstasycancauseseriousbraindamageandhastenthe【C1】______ofParkinson’sdisease,scient
任职于北京某企业人力资源部门的纪朝,接到部门经理布置的任务,要求他对所在企业员工“Office应用能力”考核报告进行完善和分析。请按照如下要求帮助他完成数据处理工作:设置“分数段统计”工作表标签颜色为蓝色;参考考生文件夹中的“成绩分布及比例.png”示
最新回复
(
0
)