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src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3ES%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E1%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">后，再斷開(kāi)開(kāi)關(guān)<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3ES%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E1%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">時(shí)（　?。?p><img width="151" height="115" src="http://tikupic.21cnjy.com/2024/06/02/32/b4/32b427ea3f7b82cc2dde4afe84e008ef_174x133.png" style="max-width:100%;"></p> </h1> <div id="ajls7sj" class="exam-s"> <span id="j2ts9ot" class="op-item"><span id="o7qyr47" class="op-item-nut">A . </span><span id="5dewqsg" class="op-item-meat">燈泡L的亮度變小</span></span> <span id="zrtcjek" class="op-item"><span id="ab2ntge" class="op-item-nut">B . </span><span id="ijcck7n" class="op-item-meat">電壓表V的示數(shù)變小</span></span> <span id="lmmvnzo" class="op-item"><span id="5oj2ius" class="op-item-nut">C . </span><span id="tcvl2sm" class="op-item-meat">電流表A的示數(shù)變小</span></span> <span id="ooq7suo" class="op-item"><span id="7nzqaug" class="op-item-nut">D . </span><span id="gwbab4d" class="op-item-meat">電流表A<sub>1</sub>的示數(shù)變小</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="ck4nvh2" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="lkgml7y" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=56950795" 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="ef9ppjz" class="analyize-extend JV_question__papers"> <h3 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