問題詳情
3)在下列命题中，不是公理的是
(A)平行于同一个平面的两个平面相互平行
(B)过不在同一条直线上的三点，有且只有一个平面
(C)如果一条直线上的两点在一个平面内，那么这条直线上所有的点都在此平面内
(D)如果两个不重合的平面有一个公共点， 那么他们有且只有一条过该点的公共直线
(A)平行于同一个平面的两个平面相互平行
(B)过不在同一条直线上的三点，有且只有一个平面
(C)如果一条直线上的两点在一个平面内，那么这条直线上所有的点都在此平面内
(D)如果两个不重合的平面有一个公共点， 那么他们有且只有一条过该点的公共直线
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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