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考点1:正负数例1如果某台家用冰箱冷藏室的温度是4℃,冷冻室的比冷藏室的温度低22℃,那么这台电冰箱冷冻室的温度为___.
Test site 1: positive and negative number of cases 1 If the temperature of a household refrigerator is 4 °C, the temperature of the freezer is 22 °C lower than the temperature of the freezer, then the temperature of the refrigerator freezer is ___.