黑山谷冬天某天的气温是 -2℃~4℃,这一天的温差是 ℃
6
这天的温差就是最高气温与最低气温的差,列式计算.
解:依题意,这一天温差为:
4-(-2)=4+2=6℃.
故答案为:6.
Our knowledge of computers _____ growing all the time. [ ]
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