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src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmi+mathvariant%3D%22normal%22%3E++%EF%BC%8C+%3C%2Fmi%3E%3Cmsub%3E%3Cmi%3Ep%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EB%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmi+mathvariant%3D%22normal%22%3E++%EF%BC%8C+%3C%2Fmi%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">和水的密度<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%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3E%E6%B0%B4%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%3D%3C%2Fmo%3E%3Cmn%3E1.0%3C%2Fmn%3E%3Cmo%3E%C3%97%3C%2Fmo%3E%3Cmsup%3E%3Cmrow%3E%3Cmn%3E10%3C%2Fmn%3E%3C%2Fmrow%3E%3Cmn%3E3%3C%2Fmn%3E%3C%2Fmsup%3E%3Cmsup%3E%3Cmrow%3E%3Cmtext%3Ekg%2Fm%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmtext%3E3%3C%2Fmtext%3E%3C%2Fmsup%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">之間的關系是（　?。?p style="text-align:left;"><img src="http://tikupic.21cnjy.com/ct20241o/6c/6f/6c6f5c4f20825997b26c665e7f502b7d.png" width="176" style="max-width:100%;"></p> </h1> <div id="xuwq8l6" class="exam-s"> <span id="iucvuxu" class="op-item"><span id="ipv5yu3" class="op-item-nut">A . </span><span id="tahihe1" 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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3Ep%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EB%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">且<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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3E%E6%B0%B4%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="i7sbx6e" class="op-item"><span id="63iomj7" class="op-item-nut">B . </span><span id="46qckiu" 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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3Ep%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EB%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">且<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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26lt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3E%E6%B0%B4%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="dz2eub6" class="op-item"><span id="yfr8zl2" class="op-item-nut">C . </span><span id="11yiiul" 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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26lt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3Ep%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EB%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26lt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">且<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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3E%E6%B0%B4%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="3ske6pl" class="op-item"><span id="x1ijkcq" class="op-item-nut">D . </span><span id="oasmck6" 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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EA%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26lt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3Ep%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EB%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26lt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">且<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%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3C%2Fmsub%3E%3Cmo%3E%26gt%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%3E%CF%81%3C%2Fmi%3E%3Cmi+mathvariant%3D%22normal%22%3E%E6%B0%B4%3C%2Fmi%3E%3C%2Fmsub%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> </div> </div> </div> </li> </ul> <div 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