材料和化学是相关的吧

        杜花奇2017/5/1120:19:32

        原来是绝缘材料呀

        夏千叶2017/5/1120:19:34

        材料化学

        夏千叶2017/5/1120:19:39

        只能这么想了

        杜花奇2017/5/1120:19:48

        那我也考虑做做材料吧

        夏千叶2017/5/1120:19:52

        化工太可怕了

  The content is not finished, continue reading on the next page