A:2500x ﹣ 25001.5x =5
B:25001.5x ﹣ 2500x =5
C:15001.5x = 1500x +5
D:1000x + 15001.5x = 2500x ﹣5
如图是从极地上空所视地球的自转图,回答下题
动脉里流动的是动脉血,静脉里流动的是静脉血.(判断对错)
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