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【S1】______millions of computers, all linked together into a gigantic network. Now every computer that is connected t
The internet【S1】______millions of computers, all linked together into a gigantic network. Now every computer that is connected t
admin
2013-06-03
43
问题
The internet【S1】______millions of computers, all linked together into a gigantic network. Now every computer that is connected to the Internet is part of this network and can【S2】______with any other connected computer.
In order to communicate with each other, these computers are【S3】______special communication software. To connect to the Internet, the user【S4】______the computer’s communication software to contact the Internet Service Provider, or ISP. Now an Internet Service Provider is a company that provides Internet service to individuals, organizations, or companies, usually for a【S5】______charge. Local ISPs connect to larger ISPs, which【S6】______connect to even larger ISPs. A Hierarchy of Network is formed. And this hierarchy is something like a pyramid, with lots of small networks at the bottoms, and fewer but larger networks moving up the pyramid. But amazingly, there is no one single controlling network at the top.
How does information that leaves one computer【S7】______all of these networks, and arrive at its【S8】______,another computer, in a fraction of a second? The process depends on routers. Now routers are【S9】______computers whose job is to direct the information through the networks. The data, or information, in an e-mail message, a web page, or a file is first【S10】______into tiny packet. Each of these packets has the address of the sender and of the receiver, and information on how to put the packets back together. Each of these packets then sent off through the internet. And when a packet reaches a router, the router reads its destination address. And the router then decides the best route to send the packet. All the packets might take the same route or they might go different routes. Finally, when all the packets reach their destination, they are put back into the correct order.
A) in turn B) ill-fated C) consists of D) equipped with
E) instructs F) caused G) communicate H) separated
I) destination J) travel through K) broken down L) monthly
M) landed N) expeditions O) specialized
【S8】
选项
答案
I
解析
转载请注明原文地址:https://kaotiyun.com/show/yrg7777K
0
大学英语四级
相关试题推荐
Whichofthefollowingbestsummarizesthemainideaofthepassage?AccordingtoLeeAnn,youcannottrainanordinarydog___
Foodisdifferentfromareatoarea.TheFrencharefamousfortheirsauces,theItalianspraised【C1】______theirpasta-foodfr
While,almosteverydepartmentofthefederalgovernmentisconcernedaboutandinvolvedwithsomeaspectsofeducation,and【C1】
Privatedoesnotmean【B1】______.Butitdoesmean【B2】______.PublicschoolsintheUSarepaidforbymoneyfromeveryone;pri
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【C1】______apar
TherewasatimewhenredmeatwasaluxuryforordinaryAmericans,orwasatleastsomethingspecial:cookingaroastforSunda
A、It’sugly.B、It’sexpensive.C、Itdoesharmtotheskin.D、Itmaydropoffhisheadanytime.Dtoupee的意思是“男子假发”。当女士建议男士戴假发时,男士说
A、Itpublishesbooksonlyforchildren.B、Itpublishesbooksaboutpeople’spets.C、Itusescomputerstomakeupstories.D、Itm
SharksSharksareamazingfishthathavebeenaroundsincelongbeforethedinosaursexisted.Theyliveinwatersallovert
【C1】______hundredsofyears,artistshavebeencraftingbeautifulteapotstobrewjusttheright【C2】______oftea.TheYixing
随机试题
某患者,女,15岁,就诊时发热,表情极度恐怖,恐水,怕风,咽肌痉挛,呼吸困难,第三天四肢软瘫,呼吸肌麻痹而死亡。该病人的诊断应该是()
患者男,45岁。颅脑内癌术后3年,期间一直不间断做放射治疗。近来临床可见全身各系统功能低下,低血糖、低血钠、高血钾、高血钙等生物化学检查改变,以及红细胞、白细胞、血小板、中性粒细胞减少,淋巴细胞和嗜酸性粒细胞增多现象,血浆促肾上腺皮质激素(ACTH)降低。
以下关子甲状腺功能亢进症的叙述哪一项是不正确的()
检测尿中β2-微球蛋白是监测
患者女,60岁,确诊为急性呼吸窘迫综合征,给予面罩吸氧,为了使吸入氧浓度能够达到53%,需将氧流量调至
()又称统计调查,是根据统计分析的目的,对大量零星的原始资料进行技术分组。
通货紧缩有可能引发银行危机,其原因是通货紧缩()。
孔子曾经说过:“君子和而不同,小人同而不和。”这一观点蕴含的哲学道理有()。
黑盒测试是通过软件的外部表现来发现软件缺陷和错误的测试方法,具体地说,黑盒测试用例设计技术包括(42)等。现有一个处理单价为1元的盒装饮料的自动售货机软件,若投入1元币,按下“可乐”、“雪碧”或“红茶”按钮,相应的饮料就送出来,若投入的是2元币,在送出饮料
Whenitcomestotheslowingeconomy,EllenSperoisn’tbitinghernailsjustyet.Butthe47-year-oldmanicuristisn’tcutti
最新回复
(
0
)