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class="menu-tit">幫助中心 </a> </li>  <li id="2a0es6f" class="login-item"> <a class="top-login-item">登錄</a> <a class="top-register-item">注冊</a> </li> </ul> </div> </div> </div> <div id="iurhdxe" class="crumbs g-cw"> <i class="iconw-fixed"></i> <span>當(dāng)前位置：</span>   <a href="/question?tree_type=category&xd=2&chid=3" class="pointer">初中數(shù)學(xué)</a> <span>/</span> <a href="javascript:;">單選題</a> </div> <div id="nrrnre1" class="m-wrap g-cw cfx"> <div id="kgab30o" class="w fl"> <div id="4knfgfj" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="68ox8nw" class="question-block"> <div id="cq8vcht" class="q-mc"> <h1 class="q-tit"> 1. <a href="/paper/view-5133332.shtml" class="ques-origin a-pointer" target="_blank"> (2022九上·陵城期中) </a> 已知二次函數(shù)<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3Ey%3C%2Fmi%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmsup%3E%3Cmrow%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsup%3E%3Cmtext%3E%EF%BC%8B%3C%2Fmtext%3E%3Cmn%3E3%3C%2Fmn%3E%3Cmi%3Ex%3C%2Fmi%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmi%3Em%3C%2Fmi%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">（m為常數(shù)）的圖像與x軸的一個(gè)公共點(diǎn)為（1，0），則關(guān)于x的一元二次方程<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsup%3E%3Cmrow%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsup%3E%3Cmtext%3E%EF%BC%8B%3C%2Fmtext%3E%3Cmn%3E3%3C%2Fmn%3E%3Cmi%3Ex%3C%2Fmi%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmi%3Em%3C%2Fmi%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E0%3C%2Fmn%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">的兩實(shí)數(shù)根是（　?。? </h1> <div id="qfcaly9" class="exam-s"> <span id="b1sozw4" class="op-item"><span id="z549eq5" class="op-item-nut">A . </span><span id="pwpehmz" class="op-item-meat"><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%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3E++%EF%BC%8C+%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmn%3E4%3C%2Fmn%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="fxk9h2r" class="op-item"><span id="44tktns" class="op-item-nut">B . </span><span id="rezi3d2" class="op-item-meat"><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%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3E++%EF%BC%8C+%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="g55sal8" class="op-item"><span id="ojukvno" class="op-item-nut">C . </span><span id="reiq2kd" class="op-item-meat"><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%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3E++%EF%BC%8C+%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmn%3E3%3C%2Fmn%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="p8xozjw" class="op-item"><span id="dlnoz1h" class="op-item-nut">D . </span><span id="iim5uv8" class="op-item-meat"><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%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3E++%EF%BC%8C+%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%EF%BC%9D%3C%2Fmtext%3E%3Cmn%3E3%3C%2Fmn%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="5i8ovos" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="ayiq6ps" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=53042878" 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> 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