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class="iconw-fixed"></i> <span>當(dāng)前位置：</span>   <a 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="1hrt77z" class="m-wrap g-cw cfx"> <div id="xl773rp" class="w fl"> <div id="djzn57t" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="vrjf5j7" class="question-block"> <div id="3l73tn5" class="q-mc"> <h1 class="q-tit"> 1. <a href="/paper/view-5465127.shtml" class="ques-origin a-pointer" target="_blank"> (2024八上·湘陰期中) </a> 在班級(jí)舉行的“自制樂(lè)器，唱響未來(lái)”的活動(dòng)中，小華同學(xué)利用橡皮筋等材料，自制了如圖所示的簡(jiǎn)易“古箏”，并用它進(jìn)行了演奏。下列說(shuō)法中正確的是（　　）<p style="text-align:left;"><img src="http://tikupic.21cnjy.com/ct20241o/a5/e6/a5e68f19135653991421630687bc06eb.png" width="117" height="86" style="max-width:100%;"></p> </h1> <div id="dhf7frp" class="exam-s"> <span id="jj1jhfb" class="op-item"><span id="z35jnbl" class="op-item-nut">A . </span><span id="z7vxdvp" class="op-item-meat">“古箏”發(fā)出的聲音是由空氣振動(dòng)產(chǎn)生的</span></span> <span id="lznb5ht" class="op-item"><span id="ldftjhf" class="op-item-nut">B . </span><span id="lr1t71j" class="op-item-meat">“古箏”發(fā)出的聲音一定不是噪聲</span></span> <span id="xdfvflj" class="op-item"><span id="jzv9pxv" class="op-item-nut">C . </span><span id="rnjpt7l" class="op-item-meat">“古箏”發(fā)出的聲音通過(guò)空氣傳入人耳</span></span> <span id="bf7ftf3" class="op-item"><span id="djzbjrt" class="op-item-nut">D . </span><span id="9n7xfzt" class="op-item-meat">用更大的力撥動(dòng)橡皮筋可以提高聲音的音調(diào)</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="vhlhbld" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="xx5nd5j" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=60442153" 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="xd5hv7v" 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-5465127.shtml" target="_blank" title="湖南省岳陽(yáng)市湘陰縣嶺北五校2024-2025學(xué)年八年級(jí)上學(xué)期11月期中物理試題" class="ex-tit"> <b></b><span>湖南省岳陽(yáng)市湘陰縣嶺北五校2024-2025學(xué)年八年級(jí)上學(xué)期11月期中物理試題</span> </a> </li> </ul> </div>  <div id="jt35tpp" class="JV_question__subject"> <ul class="subjects-recomm"> <li> <a href="/merge?id=390" target="_blank"> <img src="https://tikupic.21cnjy.com/2024/09/29/ed/45/ed453a7e6f57e01cc4f6f1bd955a6a1c.jpg"> </a> </li> <li> <a href="/merge?id=388" target="_blank"> <img src="https://tikupic.21cnjy.com/2024/09/24/4a/da/4ada51dc83cb91069cbe14038588a3c6.jpg"> </a> </li> <li> <a href="/merge?id=394" target="_blank"> <img src="https://tikupic.21cnjy.com/2024/11/13/76/a7/76a76e6216d40a4b182e08db669f4e9c.jpg"> </a> </li> </ul> </div> </div> </div> <div id="r9ndjv3" class="inner-footer"> 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