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大家都知道,水在4℃时密度最大。如果把4℃的水冷到0℃,它会膨胀,而漂浮在水上的冰块也显示了它的密度低。
As we all know, water has the highest density at 4 ° C. If the 4 ° C water is cooled to 0 ° C, it will swell and the ice floating on the water will show its low density.