<html xmlns="http://www.w3.org/1999/xhtml"><head><meta charset="utf-8"><meta name="generator" content="pdf2htmlEX"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><link rel="stylesheet" href="https://csdnimg.cn/release/download_crawler_static/css/base.min.css"><link rel="stylesheet" href="https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css"><link rel="stylesheet" href="https://csdnimg.cn/release/download_crawler_static/1078978/raw.css"><script src="https://csdnimg.cn/release/download_crawler_static/js/compatibility.min.js"></script><script src="https://csdnimg.cn/release/download_crawler_static/js/pdf2htmlEX.min.js"></script><script>try{pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({});}catch(e){}</script><title></title></head><body><div id="sidebar" style="display: none"><div id="outline"></div></div><div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://csdnimg.cn/release/download_crawler_static/1078978/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0"> 计算机专业英语</div><div class="t m0 x2 h4 y3 ff2 fs1 fc0 sc1 ls0 ws0">8-1</div><div class="t m0 x3 h5 y4 ff3 fs2 fc0 sc1 ls0 ws0">Chapter 8 The Inte<span class="_ _0"></span>rnet </div><div class="t m0 x4 h6 y5 ff4 fs3 fc1 sc1 ls0 ws0">Computer<span class="_ _1"></span> English</div><div class="t m0 x5 h7 y6 ff4 fs4 fc2 sc1 ls0 ws0">Chapter 8 <span class="_ _2"></span>The Internet: <span class="_ _2"></span>T<span class="_ _3"></span>echnology </div><div class="t m0 x6 h7 y7 ff4 fs4 fc2 sc1 ls0 ws0">Background </div></div></div><div class="pi" data-data='{"ctm":[1.333333,0.000000,0.000000,1.333333,0.000000,0.000000]}'></div></div></body></html>
<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://csdnimg.cn/release/download_crawler_static/1078978/bg2.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x7 h8 y8 ff2 fs0 fc0 sc1 ls0 ws0"> </div><div class="t m0 x8 h3 y9 ff1 fs0 fc0 sc0 ls0 ws0">计算机专业英<span class="_ _1"></span>语</div><div class="t m0 x9 h8 ya ff2 fs5 fc0 sc1 ls0 ws0">8<span class="fs0 fc3">-</span>2</div><div class="t m0 x3 h5 y4 ff3 fs2 fc0 sc1 ls0 ws0">Chapte<span class="_ _0"></span>r 8 The Internet<span class="ff4 fs6 fc2"> </span></div><div class="t m0 xa h9 yb ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha yc ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>了解<span class="_ _4"> </span><span class="ff3 sc1">Internet<span class="_ _4"> </span></span>的起源</div><div class="t m0 xa h9 yd ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha ye ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>掌握<span class="_ _4"> </span><span class="ff3 sc1">Internet<span class="_ _4"> </span></span>的关键技术概念</div><div class="t m0 xa h9 yf ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha y10 ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>描述 <span class="_ _4"> </span><span class="ff3 sc1">Internet<span class="_ _4"> </span></span>协议与应用程序的作用</div><div class="t m0 xa h9 y11 ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha y12 ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>解释当前<span class="_ _4"> </span><span class="ff3 sc1">Internet<span class="_ _4"> </span></span>的结构</div><div class="t m0 xa h9 y13 ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha y14 ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>理解当前<span class="_ _4"> </span><span class="ff3 sc1">Internet<span class="_ _4"> </span></span>的局限</div><div class="t m0 xa h9 y15 ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha y16 ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>描述<span class="_ _4"> </span><span class="ff3 sc1">Internet II<span class="_ _4"> </span></span>的潜在作用</div><div class="t m0 xa h9 y17 ff4 fs7 fc4 sc1 ls0 ws0">•</div><div class="t m0 xb ha y18 ff1 fs7 fc4 sc2 ls0 ws0"> <span class="_ _4"> </span>掌握英语长句的翻译技巧</div><div class="t m0 xc hb y19 ff3 fs8 fc0 sc1 ls0 ws0">Requirements:</div></div></div><div class="pi" data-data='{"ctm":[1.333333,0.000000,0.000000,1.333333,0.000000,0.000000]}'></div></div>
<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://csdnimg.cn/release/download_crawler_static/1078978/bg3.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x7 h8 y8 ff2 fs0 fc0 sc1 ls0 ws0"> </div><div class="t m0 x8 h3 y9 ff1 fs0 fc0 sc0 ls0 ws0">计算机专业英<span class="_ _1"></span>语</div><div class="t m0 x9 h8 ya ff2 fs5 fc0 sc1 ls0 ws0">8<span class="fs0 fc3">-</span>3</div><div class="t m0 x3 h5 y4 ff3 fs2 fc0 sc1 ls0 ws0">Chapte<span class="_ _0"></span>r 8 The Internet<span class="ff4 fs6 fc2"> </span></div><div class="t m0 xd hc y1a ff3 fs9 fc1 sc1 ls0 ws0">8.1 The Internet: Technolog<span class="_ _1"></span>y Background<span class="_ _0"></span><span class="ff4"> </span></div><div class="t m0 x5 h5 y1b ff3 fs2 fc0 sc1 ls0 ws0">New Words<span class="_ _0"></span> & Expressions</div><div class="t m0 x5 hd y1c ff3 fs6 fc2 sc1 ls0 ws0">hyperlink n.[<span class="_ _5"> </span><span class="ff1 sc3">计<span class="_ _6"> </span></span>]<span class="_ _6"> </span><span class="ff1 sc3">超链接<span class="_ _7"> </span></span>pundit <span class="_ _0"></span>n. <span class="_ _5"> </span><span class="ff1 sc3">空谈家<span class="_ _6"> </span></span>, <span class="_ _6"> </span><span class="ff1 sc3">权威性的评论者</span></div><div class="t m0 x5 hd y1d ff3 fs6 fc2 sc1 ls0 ws0">glibly ad<span class="_ _0"></span>v.<span class="_ _6"> </span><span class="ff1 sc3">流利地<span class="_ _6"> </span></span>, <span class="_ _6"> </span><span class="ff1 sc3">流畅地<span class="_ _8"> </span></span>conceptualize v.<span class="_ _6"> </span><span class="ff1 sc3">使有概念</span></div><div class="t m0 x5 hd y1e ff3 fs6 fc2 sc1 ls0 ws0">legitimization <span class="_ _0"></span> n.<span class="_ _5"> </span><span class="ff1 sc3">合法化<span class="_ _6"> </span></span>, <span class="_ _6"> </span><span class="ff1 sc3">认为正当<span class="_ _9"> </span></span>institutional <span class="_ _0"></span> adj.<span class="_ _5"> </span><span class="ff1 sc3">制度上的<span class="_ _6"> </span></span>,</div><div class="t m0 x5 hd y1f ff1 fs6 fc2 sc3 ls0 ws0">机构上的</div><div class="t m0 x5 hd y20 ff3 fs6 fc2 sc1 ls0 ws0">fledging n<span class="_ _0"></span>.<span class="_ _6"> </span><span class="ff1 sc3">刚会飞的幼鸟<span class="_ _6"> </span></span>,<span class="_ _6"> </span><span class="ff1 sc3">无经验的人<span class="_ _a"> </span></span>follow-on <span class="_ _0"></span> <span class="_ _5"> </span><span class="ff1 sc3">继续</span></div><div class="t m0 x5 hd y21 ff3 fs6 fc2 sc1 ls0 ws0">slice vt.<span class="_ _6"> </span><span class="ff1 sc3">把<span class="_ _6"> </span></span>...<span class="_ _6"> </span><span class="ff1 sc3">切成薄片<span class="_ _6"> </span></span>; <span class="_ _5"> </span><span class="ff1 sc3">把<span class="_ _6"> </span></span>...<span class="_ _6"> </span><span class="ff1 sc3">分成部分<span class="_ _b"> </span></span>break down <span class="_ _5"> </span><span class="ff1 sc3">破坏；拆散细分；分类</span></div><div class="t m0 x5 hd y22 ff3 fs6 fc2 sc1 ls0 ws0">disabled n.<span class="_ _5"> </span><span class="ff1 sc3">禁止使用的<span class="_ _c"> </span></span>quad n. <span class="_"> </span><span class="ff1 sc3">四元组</span></div><div class="t m0 x5 hd y23 ff3 fs6 fc2 sc1 ls0 ws0">mainframe n.[<span class="_ _6"> </span><span class="ff1 sc3">计<span class="_ _6"> </span></span>]<span class="_ _6"> </span><span class="ff1 sc3">主机<span class="_ _6"> </span></span>, <span class="_ _6"> </span><span class="ff1 sc3">大型机<span class="_ _d"> </span></span>vulnerable adj.<span class="_ _6"> </span><span class="ff1 sc3">易受攻击的<span class="_ _6"> </span></span>,<span class="_ _0"></span> gigaby</div><div class="t m0 x5 hd y24 ff3 fs6 fc2 sc1 ls0 ws0">te n.<span class="_ _6"> </span><span class="ff1 sc3">十亿字节<span class="_ _6"> </span></span>(giga-<span class="_ _5"> </span><span class="ff1 sc3">为字首<span class="_ _6"> </span></span>,“<span class="_ _6"> </span><span class="ff1 sc3">十亿”<span class="_ _6"> </span></span>)<span class="_ _e"> </span>supercomputer n.[<span class="_ _6"> </span><span class="ff1 sc3">计<span class="_ _6"> </span></span>] <span class="_ _6"> </span><span class="ff1 sc3">超型计算机</span></div><div class="t m0 x5 hd y25 ff3 fs6 fc2 sc1 ls0 ws0">reminiscent adj. <span class="_ _6"> </span><span class="ff1 sc3">怀旧的；回忆的<span class="_ _f"> </span></span>Domain Name <span class="_ _6"> </span><span class="ff1 sc3">域名</span></div><div class="t m0 x5 hd y26 ff3 fs6 fc2 sc1 ls0 ws0">host computer (host) <span class="_ _5"> </span><span class="ff1 sc3">主机<span class="_ _10"> </span></span>instant messaging <span class="_ _6"> </span><span class="ff1 sc3">即时信息服务</span></div><div class="t m0 x5 hd y27 ff3 fs6 fc2 sc1 ls0 ws0">packet-switching <span class="_ _6"> </span><span class="ff1 sc3">分组交换技术<span class="_ _d"> </span></span>client/server <span class="_ _6"> </span><span class="ff1 sc3">客户机<span class="_ _6"> </span></span>/<span class="_ _5"> </span><span class="ff1 sc3">服务器</span></div><div class="t m0 x5 hd y28 ff3 fs6 fc2 sc1 ls0 ws0">circuit switching <span class="_"> </span><span class="ff1 sc3">线路转接<span class="_ _8"> </span></span>bit<span class="_ _0"></span> n.[<span class="_ _5"> </span><span class="ff1 sc3">计<span class="_ _6"> </span></span>]<span class="_ _6"> </span><span class="ff1 sc3">位<span class="_ _6"> </span></span>, <span class="_ _6"> </span><span class="ff1 sc3">比特</span></div><div class="t m0 x5 hd y29 ff3 fs6 fc2 sc1 ls0 ws0">Router [<span class="_ _6"> </span><span class="ff1 sc3">计<span class="_ _6"> </span></span>] <span class="_ _6"> </span><span class="ff1 sc3">路由器<span class="_ _11"> </span></span>routing algo<span class="_ _0"></span>rithm <span class="_ _6"> </span><span class="ff1 sc3">路径算法</span></div><div class="t m0 x5 hd y2a ff3 fs6 fc2 sc1 ls0 ws0">Ethernet n.<span class="_ _5"> </span><span class="ff1 sc3">以太网<span class="_ _12"> </span></span>token ring networks <span class="_ _5"> </span><span class="ff1 sc3">令牌环形网</span></div><div class="t m0 x5 hd y2b ff3 fs6 fc2 sc1 ls0 ws0">Telnet <span class="_ _6"> </span><span class="ff1 sc3">远程登录<span class="_ _13"> </span></span>Finger <span class="_ _6"> </span><span class="ff1 sc3">查找因特网用户的程序</span></div><div class="t m0 x5 hd y2c ff3 fs6 fc2 sc1 ls0 ws0">Ping <span class="_ _6"> </span><span class="ff1 sc3">测试<span class="_ _5"> </span></span>IP<span class="_ _6"> </span><span class="ff1 sc3">地址的程序<span class="_ _14"> </span></span>Tracert <span class="_ _6"> </span><span class="ff1 sc3">检查路由器程序</span></div><div class="t m0 x5 hd y2d ff3 fs6 fc2 sc1 ls0 ws0">UNIX <span class="_ _6"> </span><span class="ff1 sc3">美国<span class="_ _6"> </span></span>AT&T<span class="_ _6"> </span><span class="ff1 sc3">公司的操作系统<span class="_ _6"> </span></span>, UNIX<span class="_ _6"> </span><span class="ff1 sc3">操作系统<span class="_ _15"> </span></span>let alone <span class="_ _6"> </span><span class="ff1 sc3">更不用说…</span></div></div></div><div class="pi" data-data='{"ctm":[1.333333,0.000000,0.000000,1.333333,0.000000,0.000000]}'></div></div>
<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://csdnimg.cn/release/download_crawler_static/1078978/bg4.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x7 h8 y8 ff2 fs0 fc0 sc1 ls0 ws0"> </div><div class="t m0 x8 h3 y9 ff1 fs0 fc0 sc0 ls0 ws0">计算机专业英<span class="_ _1"></span>语</div><div class="t m0 x9 h8 ya ff2 fs5 fc0 sc1 ls0 ws0">8<span class="fs0 fc3">-</span>4</div><div class="t m0 x3 h5 y4 ff3 fs2 fc0 sc1 ls0 ws0">Chapte<span class="_ _0"></span>r 8 The Internet<span class="ff4 fs6 fc2"> </span></div><div class="t m0 x5 he y2e ff4 fsa fc0 sc1 ls0 ws0">Abbreviatio<span class="_ _1"></span>ns</div><div class="t m0 x5 hd y2f ff3 fs6 fc2 sc1 ls0 ws0">TCP (Transfer Control Protocol) <span class="_"> </span><span class="ff1 sc3">传输控制协议</span></div><div class="t m0 x5 hd y30 ff3 fs6 fc2 sc1 ls0 ws0">IP(Internet Protocol) <span class="_ _5"> </span><span class="ff1 sc3">网际协议</span></div><div class="t m0 x5 hd y31 ff3 fs6 fc2 sc1 ls0 ws0">FTP (File Transfer Protocol) <span class="_"> </span><span class="ff1 sc3">文件传输协议</span></div><div class="t m0 x5 hd y32 ff3 fs6 fc2 sc1 ls0 ws0">POP (Post Office Protocol)<span class="_ _5"> </span><span class="ff1 sc3">邮局协议</span></div><div class="t m0 x5 hd y33 ff3 fs6 fc2 sc1 ls0 ws0">HTTP(Hypertext Transfer<span class="_ _1"></span> Protocol)<span class="_"> </span><span class="ff1 sc3">超文本传输协议</span></div><div class="t m0 x5 hd y34 ff3 fs6 fc2 sc1 ls0 ws0">IP address IP<span class="_ _6"> </span><span class="ff1 sc3">地址</span></div><div class="t m0 x5 hd y35 ff3 fs6 fc2 sc1 ls0 ws0">URL (Uniform Resource Locator) <span class="_ _6"> </span><span class="ff1 sc3">统一资源定位</span></div><div class="t m0 x5 hd y36 ff3 fs6 fc2 sc1 ls0 ws0">DNS (domain name system) <span class="_ _6"> </span><span class="ff1 sc3">域名系统</span></div><div class="t m0 x5 hd y37 ff3 fs6 fc2 sc1 ls0 ws0">SSL (Security Socket Layer) <span class="_ _6"> </span><span class="ff1 sc3">加密套接字协议层</span></div><div class="t m0 x5 hd y38 ff3 fs6 fc2 sc1 ls0 ws0">RAM (random access<span class="_ _1"></span> memory) <span class="_ _6"> </span><span class="ff1 sc3">随机存储器</span></div><div class="t m0 x5 hd y39 ff3 fs6 fc2 sc1 ls0 ws0">ARPANET (Advanced Res<span class="_ _1"></span>earch Projects Agency Network) <span class="_ _6"> </span><span class="ff1 sc3">美国国防部高级研</span></div><div class="t m0 x5 hd y3a ff1 fs6 fc2 sc3 ls0 ws0">究计划局建立的计算机网</div><div class="t m0 x5 hd y3b ff3 fs6 fc2 sc1 ls0 ws0">ICANN (Internet Corporation for Assigned Names and Numbers) <span class="_ _5"> </span><span class="ff1 sc3">因特网域名</span></div><div class="t m0 x5 hd y3c ff1 fs6 fc2 sc3 ls0 ws0">与地址管理组织 </div><div class="t m0 x5 hd y3d ff3 fs6 fc2 sc1 ls0 ws0">SMTP (Simple Message Transfer Protocol)<span class="_ _6"> </span><span class="ff1 sc3">简单邮件传输协议<span class="_ _6"> </span></span>,<span class="_ _0"></span> <span class="_ _6"> </span><span class="ff1 sc3">用于电子邮件的</span></div><div class="t m0 x5 hd y3e ff1 fs6 fc2 sc3 ls0 ws0">传输</div><div class="t m0 x5 hd y3f ff3 fs6 fc2 sc1 ls0 ws0">IMAP (Internet Message Acces<span class="_ _1"></span>s Protocol) Internet<span class="_"> </span><span class="ff1 sc3">消息访问协议</span></div></div></div><div class="pi" data-data='{"ctm":[1.333333,0.000000,0.000000,1.333333,0.000000,0.000000]}'></div></div>
<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://csdnimg.cn/release/download_crawler_static/1078978/bg5.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x7 h8 y8 ff2 fs0 fc0 sc1 ls0 ws0"> </div><div class="t m0 x8 h3 y9 ff1 fs0 fc0 sc0 ls0 ws0">计算机专业英<span class="_ _1"></span>语</div><div class="t m0 x9 h8 ya ff2 fs5 fc0 sc1 ls0 ws0">8<span class="fs0 fc3">-</span>5</div><div class="t m0 x3 h5 y4 ff3 fs2 fc0 sc1 ls0 ws0">Chapte<span class="_ _0"></span>r 8 The Internet<span class="ff4 fs6 fc2"> </span></div><div class="t m0 xe h5 y40 ff3 fs2 fc2 sc1 ls0 ws0">What is the Inte<span class="_ _0"></span>rnet? Where did<span class="_ _0"></span> it come from, and how did it support </div><div class="t m0 xe h5 y41 ff3 fs2 fc2 sc1 ls0 ws0">the growth of <span class="_ _0"></span>the World Wide<span class="_ _0"></span> Web? What a<span class="_ _0"></span>re the Internet’s most </div><div class="t m0 xe h5 y42 ff3 fs2 fc2 sc1 ls0 ws0">important operat<span class="_ _0"></span>ing principles? The Inter<span class="_ _0"></span>net is an interconne<span class="_ _0"></span>cted </div><div class="t m0 xe h5 y43 ff3 fs2 fc2 sc1 ls0 ws0">network of th<span class="_ _0"></span>ousands of ne<span class="_ _0"></span>tworks and millions of compu<span class="_ _0"></span>ters </div><div class="t m0 xe h5 y44 ff3 fs2 fc2 sc1 ls0 ws0">(sometimes called <span class="ff5">hos<span class="_ _0"></span>t computers </span>or <span class="_ _0"></span>just <span class="ff5">hosts</span>)<span class="_ _0"></span> linking businesses, </div><div class="t m0 xe h5 y45 ff3 fs2 fc2 sc1 ls0 ws0">education<span class="_ _0"></span>al institutions, governme<span class="_ _0"></span>nt agencies, and individua<span class="_ _0"></span>ls </div><div class="t m0 xe h5 y46 ff3 fs2 fc2 sc1 ls0 ws0">together. The <span class="_ _0"></span>Internet provides<span class="_ _0"></span> around 400 million people around <span class="_ _0"></span>the </div><div class="t m0 xe h5 y47 ff3 fs2 fc2 sc1 ls0 ws0">world (and over 17<span class="_ _0"></span>0 million people in the United State<span class="_ _0"></span>s) with services<span class="_ _0"></span> </div><div class="t m0 xe h5 y48 ff3 fs2 fc2 sc1 ls0 ws0">such as e-mail, newsgro<span class="_ _0"></span>ups, shopping, rese<span class="_ _0"></span>arch, instant messagin<span class="_ _0"></span>g, </div><div class="t m0 xe h5 y49 ff3 fs2 fc2 sc1 ls0 ws0">music, videos, and news. N<span class="_ _0"></span>o one organizati<span class="_ _0"></span>on controls the Int<span class="_ _0"></span>ernet or </div><div class="t m0 xe h5 y4a ff3 fs2 fc2 sc1 ls0 ws0">how it functions<span class="_ _0"></span>, nor is it owned by any<span class="_ _0"></span>body, yet it has provid<span class="_ _0"></span>ed the </div><div class="t m0 xe h5 y4b ff3 fs2 fc2 sc1 ls0 ws0">infrastructu<span class="_ _0"></span>re for a transformat<span class="_ _0"></span>ion in commerce, scientific resea<span class="_ _0"></span>rch, </div><div class="t m0 xe h5 y4c ff3 fs2 fc2 sc1 ls0 ws0">and culture. </div><div class="t m0 xf hd y4d ff1 fs6 fc4 sc2 ls0 ws0">因特网是什么<span class="_ _6"> </span><span class="ff3 sc1">? <span class="_ _6"> </span></span>它来自何处，和它如何支持万维网的增长<span class="_ _6"> </span><span class="ff3 sc1">? <span class="_ _6"> </span></span>因特网最重要的运行原则</div><div class="t m0 xf hd y4e ff1 fs6 fc4 sc2 ls0 ws0">是什么<span class="_ _6"> </span><span class="ff3 sc1">?<span class="_ _6"> </span></span>因特网是成千上万的网络和数以百万计的计算机<span class="_ _6"> </span><span class="ff3 sc1">(<span class="_ _6"> </span></span>有时被称为主机计算机或主</div><div class="t m0 xf hd y4f ff1 fs6 fc4 sc2 ls0 ws0">机<span class="_ _6"> </span><span class="ff3 sc1">)<span class="_ _6"> </span></span>将企业、教育机构、政府机关和个人联结起来的一个互联网络。因特网为全球大约</div><div class="t m0 xf hd y50 ff3 fs6 fc4 sc1 ls0 ws0">4<span class="_ _6"> </span><span class="ff1 sc2">亿人<span class="_ _6"> </span></span>(<span class="_ _6"> </span><span class="ff1 sc2">其中美国<span class="_ _6"> </span></span>1.7<span class="_ _6"> </span><span class="ff1 sc2">亿多人<span class="_ _6"> </span></span>)<span class="_ _6"> </span><span class="ff1 sc2">提供诸如电子邮件、<span class="ff6">新闻讨</span>论组、<span class="ff6">购物</span>、研究、即时信</span></div><div class="t m0 xf hd y51 ff1 fs6 fc4 sc2 ls0 ws0">息、<span class="ff6">音乐</span>、<span class="ff6">视频</span>和<span class="ff6">新闻等</span>服务。<span class="ff6">没</span>有<span class="ff6">任</span>何组织控制因特网或它的运作<span class="_ _6"> </span><span class="ff3 sc1">,<span class="_ _6"> </span></span>它<span class="ff6">也</span>不被<span class="ff6">任</span>何人</div><div class="t m0 xf hd y52 ff6 fs6 fc4 sc2 ls0 ws0">所拥<span class="ff1">有<span class="_ _6"> </span><span class="ff3 sc1">,<span class="_ _6"> </span></span></span>尽<span class="ff1">管它为</span>商<span class="ff1">业交易、</span>科学<span class="ff1">研究和文化提供</span>基础设施<span class="ff1">。</span></div></div></div><div class="pi" data-data='{"ctm":[1.333333,0.000000,0.000000,1.333333,0.000000,0.000000]}'></div></div>
