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
The Internet is a global network that connects other computer networks, together with software and protocols for controlling the
The Internet is a global network that connects other computer networks, together with software and protocols for controlling the
admin
2020-03-30
53
问题
The Internet is a global network that connects other computer networks, together with software and protocols for controlling the movement of data. The Internet, often referred to as "the Net", was initiated in 1969 by a group of universities and private research groups funded by the US Department of Defense. It now covers almost every country in the world. Its organization is informal and deliberately nonpolitical; its controllers tend to concentrate on technical aspects rather than on administrative control.
The Internet offers users a number of basic services including data transfer, electronic mail, and the ability to access information in remote databases. A notable feature is the existence of user groups, which allow people to exchange information and debate specific subjects of interest. In addition, there are a number of high-level services. For example, MBONE allows the transmission of messages to more than one destination. It is used in videoconferencing. The World Wide Web, known as "the Web", is another high level Internet service, developed in the 1990s in Geneva. It is a service for distributing multimedia information, including graphics, pictures, sounds, and video as well as text. A feature of the World Wide Web is that it allows links to other related documents elsewhere on the Internet. Documents for publication on the Web are presented in a form known as HTML(hypertext mark up language). This allows a specification of the page layout and typography as it will appear on the screen. It also allows the inclusion of active links to other documents. Generally, these appear on the screen display as highlighted text or as additional icons. Typically, the user can use a mouse to "click" on one of these points to load and view a related document. Many commercial and public organizations now have their own Web site(specified by an address code)and publish a "home page", giving information about the organization.
Up to the mid-1990s, the major users of the Internet were academic and research organizations. This has begun to change rapidly with individual home users linking in through commercial access providers and with a growing interest by companies in using the Internet for publicity, sales, and as a medium for electronic publishing. At the same time, there are problems with the flow of information across national borders, bringing in debates about copyright protection, data protection, the publication of pornography, and ultimately political control and censorship.
This passage focuses on______.
选项
A、the instructions for the Internet users
B、the historical development of the Internet
C、the kinds of data transferred through the Internet
D、the problems brought about by the Internet
答案
B
解析
纵览全文,文章的意图在于叙述国际互联网的历史发展过程,重点叙述了其功能逐渐扩大的过程。
转载请注明原文地址:https://kaotiyun.com/show/oTTO777K
0
考博英语
相关试题推荐
AtleastsincetheIndustrialRevolution,genderroleshavebeeninastateoftransition.Asaresult,culturalscriptsaboutm
AWhileexpertsinbasicscienceareimportant,BskilledtalentsshouldbetheCoverridingmajoritysincetheyareDatheavydema
Criticismwithoutsuggestingareasofimprovementisnot______andshouldbeavoidedifpossible.
Theearthiswitnessinganurbanrevolution,aspeopleworldwidecrowdintotownsandcities.In1800onlyfivepercentofthew
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
She______muchmoreaccurateresponsesnow,hadshetakenmorepainsindevisingthequestions.
Harrywas______byabeewhenhewascollectingthehoney.
Arecentsurveyshowsthat,whileninety-fourpercentofcompaniesconductingmanagement-trainingprogramsopenthemtowomen,w
Icaughta______of(hetaxibeforeitdisappearedaroundthecomerofthestreet
Theinvestigationintothefoodsafetyincidentoverdairyproductstaintedwithmelamineis______.
随机试题
男性,60岁,阵发性腹痛伴频繁呕吐.停止排气、排便8小时入院。2年前因十二指肠溃疡穿孔行胃大部切除术,查体:腹稍胀,上腹部压痛。最可能的诊断是
下列哪项不是喘证特征:
手术操作中86.6:游离皮肤移植术,具有双分类轴心。其中异体、同种、人造皮肤属于
青霉素类的抗菌机制是
一女咨询者,35岁,某大学教师。3个月前因出国问题与领导争吵,而后逐渐表现出情绪低落、兴趣减退,对未来悲观失望,认为领导和同事都疏远她,常有怨天尤人的表现。能主动求医,接触良好。针对此例,在心理评估上宜采用
盐酸氯胺酮化学结构中含有
房屋拆迁实施过程中,违法建筑应由()认定。[2008、2004年考试真题]
[背景资料]某工程项目难度较大,技术含量较高,经有关招投标主管部门批准采用邀请招标方式招标。业主于2001年1月20日向符合资质要求的A、B、C三家承包商发出投标邀请书,A、B、C三家承包商均按招标文件的要求提交了投标文件,最终确定B承包商中标,并
()不属于民用危险物品。
设循环队列的存储空间为Q(1:35),初始状态为front=rear=35。现经过一系列入队与退队运算后,front=15,rear=15,则循环队列中的元素个数为
最新回复
(
0
)