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
自考
In the last fifty years communications throughout the world have been improved greatly. This is because of the telephone, radio
In the last fifty years communications throughout the world have been improved greatly. This is because of the telephone, radio
admin
2010-12-12
102
问题
In the last fifty years communications throughout the world have been improved greatly. This is because of the telephone, radio and television. Recently the use of satellites has increased the speed of communications as well as the distance over which people can communicate. Television pictures can now be sent from one side of the world to the other by means of satellites.
In the world of tomorrow the television will still play an important part. One important development will be a new dialing system. We will be able to pick up our telephone and make a phone call anywhere in the world. Another important development is the "videophone" This telephone will have a small screen on which the speakers will be able to see each other.
The laser beam will also be very helpful to future communications. It has been shown that over seventy television programs can be shown at the same time by means of a single laser beam. The laser beam will also help in the sending of television and telephone messages by satellites.
Computers are also important in communications at present and will become even more important in the future. For example, one large company has over 2, 000 offices, all of which are connected to a single computer. If one of the branch offices wants some information, it sends a demand to the computer center. Here the demand is changed into computer language. Computer language may be different for different kinds of computers. One kind of computer language is in the form of small cards with the patterns of small holes in them. The computer reads the patterns in the cards and then produces the information. This is sent back to the computer center where it is hanged back into ordinary language. Then it is sent on to the office that wanted it.
Scientists have been developing a new form of TV-confravision. In the future when businessmen want to hold a meeting with other businessmen they will use "confravision". In a special meeting room they will be connected by television to other businessmen who may be in another country. They will carry on their meeting as though they were all in the room together.
In tomorrow’s world the speed of communications and amount of material sent and received will be greatly increased. Telephoning a friend on the other side of the world will be like telephoning a friend in the same city; and computers and television meetings will be part of everyday business life.
Confravision is a new kind of______.
选项
A、radio used for sending messages
B、TV used for meeting
C、TV used by businessmen
D、telephone used in a special meeting room
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/9HAR777K
本试题收录于:
英语(二)题库公共课分类
0
英语(二)
公共课
相关试题推荐
Weallknowthathumansaredamagingtheenvironment,butwhatcanwedoaboutit?Somepeoplearetryingtodotheirbittobemo
Itisdifficultto______theimplicationbetweenthelines.
Tounderstandthesentence,youshouldanalyzeitsparts______.
Thelittlegirl______intothelakebutherfathercaughther.
Thenewsitemaboutthefireisfollowedbyadetailedreportsmade______.
______acertaindoubtamongthestudentsastothenecessityofthework.
I【C1】______untilthevice-presidentwentbacktohisofficeandknockedonhisdoor.SinceItaughtcollaboration,Idecidedto
Thlelittlegirlwhogotlostdecidedtoremain______shewasandwaitforhermother.
Withthedevelopmentofthesenewtools,itis______manhassuddenlybecomeamillionaireofthemind.
Parent’sworriesonChildren’ssaftyThereisnothinglikethesuggestionofacancerrisktoscareaparent,especiallyo
随机试题
审计分为抽样审计与详细审计,这种分类的标准是()
PowerPoint2010中,在_________视图中,用户可以看到图面变成上下两半,上面是幻灯片,下面是文本框,可以记录演讲者讲演时所需的一些提示重点。
关于肾前性急性肾衰竭病因,不正确的是
女,28岁。经产妇,人工流产2次。妊娠37周,晨起发现阴道流血,多于月经量,无腹痛。查体:P80次/分,BP110/70mmHg,胎方位LOA,头浮,胎心率150次/分,耻骨联合上可闻及血管音。最可能的诊断是
凡是实行招标投标的项目,货物的价格按()执行。
从风险管理目标的角度分析,建设工程风险可分为( )。
气流:飞机
甲某在打电话时无意中发现电话机旁县检察院的举报箱中露出一封信,随手取出。发现该信举报该县某局长乙某有受贿4万多元的犯罪事实。甲某与乙某熟识,便将举报信交给乙某。乙某当即酬谢甲某8000元现金。事后,乙某与检察院有关人员串通,并销毁了有关罪证,()
(2017年真题)简述假释的法律后果。
Thehours________thechildrenspendintheirone-wayrelationshipwithtelevisionpeople,undoubtedlyaffecttheirrelationshi
最新回复
(
0
)