carr____ ____
What are the sneakers talking about?
——It's too _________ today.
——Yes, why don't you put on (穿上) your coat?
如图所示,同种材料制成的实心圆柱体A和B放在水平地面上,高度比hA:hB=2:1,底面积之比SA:SB=1:2,则它们对地面的压强之比pA:pB=____。