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class="w fl"> <div id="xn77j9x" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="7l7nfbd" class="question-block"> <div id="hpx7nbb" class="q-mc"> <h1 class="q-tit"> 1. <a href="/paper/view-5355743.shtml" class="ques-origin a-pointer" target="_blank"> (2024高一下·紅橋期末) </a> 如圖所示為一皮帶傳動(dòng)裝置，輪<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%3Cmsub%3E%3Cmi%3EO%3C%2Fmi%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">的半徑為輪<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%3Cmsub%3E%3Cmi%3EO%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">半徑的2倍，P、Q兩點(diǎn)分別位于輪<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%3Cmsub%3E%3Cmi%3EO%3C%2Fmi%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">、<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%3Cmsub%3E%3Cmi%3EO%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">的邊緣上。皮帶不打滑，P、Q兩點(diǎn)的向心加速度大小之比為（　?。?p style="text-align:left;"><img src="http://tikupic.21cnjy.com/ct20241o/e8/fb/e8fb03674b6c0acbfbb4a4603eebccb6.png" width="204" height="100" style="max-width:100%;"></p> </h1> <div id="l7blnrn" class="exam-s"> <span id="xrjnfdb" class="op-item"><span id="dtxnbbf" class="op-item-nut">A . </span><span id="fpfz7nf" class="op-item-meat">1：2</span></span> <span id="j7r7l7l" class="op-item"><span id="bhbjrzh" class="op-item-nut">B . </span><span id="nvdxj7h" class="op-item-meat">1：4</span></span> <span id="px7vdhf" class="op-item"><span id="vt7j7jz" class="op-item-nut">C . </span><span id="jbbb7xj" class="op-item-meat">4：1</span></span> <span id="x7t7pzl" class="op-item"><span id="jndztbh" class="op-item-nut">D . </span><span id="xxhjb7l" class="op-item-meat">2：1</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="f777dfd" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="jrz77lj" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=58001109" 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="brxxp7p" 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-5391477.shtml" 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