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class="ibList-txt">抖音</p></a>  </div> </div> </div> </li> </ul> </div> </div>   <div id="gwr18lkl3dc" class="crumbs-wrap layout">當前位置：<a href='/' target='_self'>建設工程教育網(wǎng)</a> > <a href='/zaojia/'>一級造價(jià)工程師</a> > <a href='/zaojia/stzx/'>試題中心</a> > <a href='/zaojia/moniti/'>模擬試題</a></div>  <div id="gwr18lkl3dc" class="layout clearfix">  <div id="gwr18lkl3dc" class="main-left clearfix">  <a href="http://www.zcjx68.com/xuanke/list-50005-0-0" target="_blank" title="2025年考前面授【大咖密押集訓營(yíng)】上線(xiàn)"><img src="/upload/resources/image/2025/07/10/602038.png" alt="2025年考前面授【大咖密押集訓營(yíng)】上線(xiàn)" class="banner"></a>   <div id="gwr18lkl3dc" class="news_mian"> <h1><span id="ycTitle"></span>光纜通信中，單模光纖的傳輸特點(diǎn)有（ ?。?/h1> <div id="gwr18lkl3dc" class="mark"> <div id="gwr18lkl3dc" class="lTxt"> <span id="gwr18lkl3dc" class="time">2019-09-18 17:08</span> <span id="gwr18lkl3dc" class="source">來(lái)源：<a href="http://www.zcjx68.com" title="建設工程教育網(wǎng)">建設工程教育網(wǎng)</a></span> </div> <a href="javascript:void(0);" target="_self" class="collection li-an"></a> <a href="javascript:void(0);" target="_self" class="print" onclick="javascript:window.print()">打印</a> <div id="gwr18lkl3dc" class="font_size">字體：<a href="javascript:void(0);" target="_self" class="big">大</a><a href="javascript:void(0);" target="_self" class="small">小</a></div> </div> </div>   <div id="gwr18lkl3dc" class="news_con"> <div id="gwr18lkl3dc" class="jxbox clearfix"> <p style="text-indent: 2em; text-align: left;">造價(jià)工程師模擬試題一直被視為考前復習的一個(gè)重點(diǎn)資料。為了助力造價(jià)工程師考生們備考一級造價(jià)工程師考試，建設工程教育網(wǎng)整理了2004年-2018年的造價(jià)工程師模擬練習題及答案解析。希望考生們多看習題，提前了解出題特點(diǎn)，為即將到來(lái)的一級造價(jià)工程師考試做充分的準備。</p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">多選題</span></p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">光纜通信中，單模光纖的傳輸特點(diǎn)有（ ?。?/span></p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">A．模間色散很小</span></p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">B．傳輸頻帶比多模窄</span></p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">C．適用于遠程通信</span></p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">D．只能與激光二極管光源配合使用</span></p><script type="text/javascript">function display(id){ var traget=document.getElementById(id); if(traget.style.display=="none"){ traget.style.display=""; }else{ traget.style.display="none"; } }</script><p>　　<input onclick="display('menu')" type="button" value="查看/隱藏答案"/></p><form></form><div style="DISPLAY: none" id="menu"><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">【答案】ACD</span></p><p style="text-indent: 2em; text-align: left;"><span style="color: rgb(51, 51, 51);">【解析】單模光纖只能傳輸一種模式的光，優(yōu)點(diǎn)是模間色散很小，傳輸頻帶寬，適用于遠程通信，每公里帶寬可達10GHz.缺點(diǎn)是芯線(xiàn)細，耦合光能量較小，光纖與光源以及光纖與光纖之間的接口比多模光纖難；單模光纖只能與激光二極管光源配合使用，而不能與發(fā)散角度較大、光譜較寬的發(fā)光二極管配合使用。</span></p></div> <div style="text-align: right;" id="ycFoot"></div> </div> </div>   <div id="gwr18lkl3dc" class="share new-share clearfix"> <div id="gwr18lkl3dc" class="info-share-new fl"> <div id="gwr18lkl3dc" class="snltxt fl">分享到：</div> <div id="gwr18lkl3dc" class="fl" id="share-2020" data-sites="wechat, qzone, weibo, qq"></div> </div> <div id="gwr18lkl3dc" class="jc fr">責任編輯：辛靜</div> </div>   <a href="http://www.zcjx68.com/zaojia/bkzl/wa20240115181723.shtml" target="_blank" title="刷題寶"><img src="/upload/resources/image/2024/10/30/596480.png" alt="刷題寶" class="banner"></a>   <div id="gwr18lkl3dc" class="left-information clearfix"> <div id="gwr18lkl3dc" class="tit"> <div id="gwr18lkl3dc" class="tit-left">相關(guān)資訊</div> </div> <ul> <li>· <a href="/zaojia/stzx/wu20190920172405.shtml" target="_blank" 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