图所示的电动自行车从它的结构和使用来看应用了许多物理知识下列说法中不正确的是 A.车座的设计应用了压强的知识 b.脚蹬上刻有凹凸不平的 Template




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tomski图所示的电动自行车从它的结构和使用来看应用了许多物理知识下列说法中不正确的是 a.车座的设计应用了压强的知识 b.脚蹬上刻有凹凸不平的 coloring