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fl"> <div id="zftr5bz" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="dlzrp5x" class="question-block"> <div id="ppxpln7" class="q-mc"> <h1 class="q-tit"> 1. <a href="/paper/view-5192482.shtml" class="ques-origin a-pointer" target="_blank"> (2023高一下·永勝期末) </a> 一輛汽車沿某方向做直線運(yùn)動(dòng)，先以<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3E1%3C%2Fmtext%3E%3Cmtext%3E5%3C%2Fmtext%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3E%2F%3C%2Fmtext%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">的速度駛完全程的四分之三，余下的路程以<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3E2%3C%2Fmtext%3E%3Cmtext%3E0%3C%2Fmtext%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3E%2F%3C%2Fmtext%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">的速度行駛，則汽車從開始到駛完全程的平均速度大小為（　?。? </h1> <div id="ppjnxvb" class="exam-s"> <span id="hb5pz79" class="op-item"><span id="jd7djjz" class="op-item-nut">A . </span><span id="tz7jf7l" 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%3Cmtext%3E1%3C%2Fmtext%3E%3Cmtext%3E6%3C%2Fmtext%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3E%2F%3C%2Fmtext%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="zfv5d99" class="op-item"><span id="nfhnlfp" class="op-item-nut">B . </span><span id="7bfnzdd" 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%3Cmtext%3E1%3C%2Fmtext%3E%3Cmtext%3E6%3C%2Fmtext%3E%3Cmtext%3E.%3C%2Fmtext%3E%3Cmtext%3E3%3C%2Fmtext%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3E%2F%3C%2Fmtext%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="9thbvvz" class="op-item"><span id="lp9jppr" class="op-item-nut">C . </span><span id="33lvtfh" 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%3Cmtext%3E1%3C%2Fmtext%3E%3Cmtext%3E7%3C%2Fmtext%3E%3Cmtext%3E.%3C%2Fmtext%3E%3Cmtext%3E5%3C%2Fmtext%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3E%2F%3C%2Fmtext%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="7f9xl1n" class="op-item"><span id="n1thp9b" class="op-item-nut">D . </span><span 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