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(2021高二下·衢州期末) </a> 在近期“三星堆遺址”發(fā)掘過(guò)程中，科學(xué)家通過(guò)對(duì)6個(gè)坑的73份炭屑樣品用“碳14”發(fā)生 <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%3E%CE%B2%3C%2Fmi%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"> 衰變程度來(lái)進(jìn)行年代檢測(cè)，判定新發(fā)現(xiàn)的4號(hào)坑年代屬于商代晚期。下列說(shuō)法正確的是（　?。? </h1> <div id="fdd3t9v" class="exam-s"> <span id="tpzthvr" class="op-item"><span id="xhldfn1" class="op-item-nut">A . </span><span id="73tz5vf" class="op-item-meat">碳14的衰變方程為 <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%3Cmmultiscripts%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmprescripts+%2F%3E%3Cmn%3E7%3C%2Fmn%3E%3Cmrow%3E%3Cmn%3E14%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmmultiscripts%3E%3Cmo%3E%E2%86%92%3C%2Fmo%3E%3Cmmultiscripts%3E%3Cmtext%3EN%3C%2Fmtext%3E%3Cmprescripts+%2F%3E%3Cmn%3E8%3C%2Fmn%3E%3Cmrow%3E%3Cmn%3E14%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmmultiscripts%3E%3Cmo%3E%2B%3C%2Fmo%3E%3Cmmultiscripts%3E%3Cmtext%3Ee%3C%2Fmtext%3E%3Cmprescripts+%2F%3E%3Cmrow%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3Cmn%3E0%3C%2Fmn%3E%3C%2Fmmultiscripts%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="l91rh1h" class="op-item"><span id="vhbr3tp" class="op-item-nut">B . </span><span id="tt1h931" class="op-item-meat">發(fā)生 <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%3E%CE%B2%3C%2Fmi%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"> 衰變后，原子核質(zhì)量出現(xiàn)虧損，質(zhì)量數(shù)不變</span></span> <span id="5dd3xnd" class="op-item"><span id="3ztbz3z" class="op-item-nut">C . </span><span id="nv9bbvj" class="op-item-meat">弱相互作用是引起原子核外電子發(fā)生 <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%3E%CE%B2%3C%2Fmi%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"> 衰變的原因</span></span> <span id="dlzv1hh" class="op-item"><span id="9xrx79r" class="op-item-nut">D . </span><span id="rflfxpb" class="op-item-meat">碳14年代檢測(cè)有幾十年的誤差，原因是“碳14”的半衰期受溫度、壓強(qiáng)的影響</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="fl1jpll" id="J_ConnectQuestionsdBox"> </div> 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