<1950kg/m3< /div>
D.
2600 kg/m3。\\n\"},\"apool\":{\"numToAttrib\":{\"0\":[\"author\",\"p.144115212480481818\"],\"1\":[\"font-family\",\"宋体\"],\"2\":[\"font-size\",\"12pt\"],\"3\":[\"textalign\",\"left\"],\"4\":[\"pap-left-indent\",\"21pt\"],\"5\":[\"pap-specialIndent\",\"0pt\"],\"6\":[\"pap-line\",\"1.5\"],\"7\":[\"pap-line-rule\",\"auto\"],\"8\":[\"pap-stylesheet-name\",\"listparagraph\"]},\"nextNum\":9},\"keyFramesInfo\":{\"frames\":[],\"src\":\"copy\"}}","storyAtexts":[],"srcGlobalPadId":"300000000$aVqboztDsYkC"} > >2600 kg/m3