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10)甲从正方形四个顶点中任意选择两个顶点连成直线,一页从该正方形四个顶点中任意选择连个顶点连成直线,则所得的两条直线相互垂直的概率是(A) (B) (C) (D)
問題詳情
10)甲从正方形四个顶点中任意选择两个顶点连成直线,一页从该正方形四个顶点中任意选择连个顶点连成直线,则所得的两条直线相互垂直的概率是
(A)
(B)
(C)
(D)
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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