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href="/question?tree_type=category&xd=2&chid=6" class="pointer">初中物理</a> <span>/</span> <a href="javascript:;">單選題</a> </div> <div id="q3jlqim" class="m-wrap g-cw cfx"> <div id="7h171vy" class="w fl"> <div id="9icyado" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="rfyhgrk" class="question-block"> <div id="mjrnl8n" class="q-mc"> <h1 class="q-tit"> 1. 關(guān)于聲音的說(shuō)法正確的是（　?。?/p> </h1> <div id="ntyu29p" class="exam-s"> <span id="bfhrqrt" class="op-item"><span id="xknvq2h" class="op-item-nut">A . </span><span id="kqrmgcx" class="op-item-meat">物體只要振動(dòng)，人們就能聽(tīng)到聲音</span></span> <span id="37lcvph" class="op-item"><span id="ftkhjav" class="op-item-nut">B . </span><span id="n1staup" class="op-item-meat">聲音只能通過(guò)介質(zhì)傳播</span></span> <span id="ocolwse" class="op-item"><span id="ncg3de7" class="op-item-nut">C . </span><span id="3bntcf2" class="op-item-meat">聲音在一切介質(zhì)中的傳播速度都是相同的</span></span> <span id="p1qipby" class="op-item"><span id="hdr6f8c" class="op-item-nut">D . </span><span id="azmrcdq" class="op-item-meat">聲音中，人們聽(tīng)不見(jiàn)的聲音只有超聲波</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="z3zhisn" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="gxsrauy" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=2486715" 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="wu2y31b" class="analyize-extend JV_question__papers"> <h3 class="extend-mt">使用過(guò)本題的試卷</h3> <ul class="extend-mc"> <li> <a href="/paper/view-39945.shtml" target="_blank" title="2015-2016學(xué)年北大附中河南分校初二上學(xué)期期末物理試卷（普通班）" class="ex-tit"> <b></b><span>2015-2016學(xué)年北大附中河南分校初二上學(xué)期期末物理試卷（普通班）</span> </a> </li> </ul> </div>  <div id="lku34nq" class="JV_question__subject"> <ul class="subjects-recomm"> <li> <a 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