生活中的化学工程 - 考题17： 为什么你的皮肤不好？

各位看官，您知道下列无机盐的饱和水溶液在室温下与之气液平衡的空气的相对湿度吗？
氢 氧 化钠、氢 氧 化钾、氯化钙、氯化镁、氯化钠、硫酸钠。
您知道为什么您的皮肤为什么干燥、老化、起皱吗？尤其是在北方。

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