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src="http://tikupic.21cnjy.com/ct20241o/d6/0a/d60adde519aea09c8a6260170e0c8923.png" width="306" height="125" style="max-width:100%;"></p> </h1> <div id="cjnyidf" class="exam-s"> <span id="ov6jscc" class="op-item"><span id="an5ef22" class="op-item-nut">A . </span><span id="7lp0xxh" class="op-item-meat">手機(jī)電池產(chǎn)生的焦耳熱為<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmfrac%3E%3Cmrow%3E%3Cmsup%3E%3Cmi%3EU%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsup%3E%3C%2Fmrow%3E%3Cmi%3Er%3C%2Fmi%3E%3C%2Fmfrac%3E%3Cmi%3Et%3C%2Fmi%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="pvvxrdw" class="op-item"><span id="2cf44yb" class="op-item-nut">B . </span><span id="nppvumd" class="op-item-meat">手機(jī)的輸入功率為UI</span></span> <span id="t2pndwn" class="op-item"><span id="rwfldlt" class="op-item-nut">C . </span><span id="liuspaj" class="op-item-meat">充電寶產(chǎn)生的熱功率為I<sup>2</sup>r</span></span> <span id="e7mkr8c" class="op-item"><span id="mchxwue" class="op-item-nut">D . </span><span id="xdgpmuo" class="op-item-meat">手機(jī)電池儲(chǔ)存的化學(xué)能為UIt</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="kfjncjj" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="ifaobnc" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=57908860" width="140px" height="140px" alt=""> <p style="text-align:center;margin-top: 10px">微信掃碼預(yù)覽、分享更方便</p> </div> <div id="586eveq" class="analyize-extend JV_question__papers"> <h3 class="extend-mt">使用過本題的試卷</h3> <ul class="extend-mc"> <li> <a href="/paper/view-5391924.shtml" target="_blank" title="高考物理一輪復(fù)習(xí)：電能與可持續(xù)發(fā)展" class="ex-tit"> <b></b><span>高考物理一輪復(fù)習(xí)：電能與可持續(xù)發(fā)展</span> </a> </li> </ul> </div>  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