题目:
编队飞行(即平行飞行)的两架飞机A,B在坐标系中的坐标分别为A(-1,2),B(-2,3),当飞机A飞到指定位置的坐标是(2,-1)时,飞机B的坐标是( )
A.(1,5)
B.(-4,5)
C.(1,0)
D.(-5,6)
答案:
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