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第一周平面 空间直线A组一、选择题1.空间有四个点 ,其中任意三个点都不在同一直线上 ,那么它们可确定 ( )( A)三个或两个平面 . ( B)四个或三个平面 .( C)三个或一个平面 . ( D)四个或一个平面 .2 .共点的四条直线最多能确定的平面个数是( )( A) 3. ( B) 4 .
The first week of the plane space straight line A group 1. Multiple choice questions 1. Space has four points, any three points are not on the same line, then they can determine () (A) three or two planes. (B) Four or three planes. (C) Three or one plane. (D) Four or one plane. 2. The maximum number of planes that can be determined for four straight lines of common point is () (A) 3. (B) 4 .