碱金属都能与水剧烈反应，所以必须小心使用, Bar 鹼金屬, Purasbar

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	Floor 1 硫酸铜溶液 7/12/12 21:49 而且不能用手拿
	Floor 2 硫酸铜溶液 7/12/12 21:49 我只买了金属钠。花了二十多块钱，250g/甁

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