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平面直角坐标系中点A(-3,1)关于y轴的对称点A的坐标为( ) A.(3,1)...
平面直角坐标系中点A(-3,1)关于y轴的对称点A的坐标为( )
A.(3,1)
B.(-3,-1)
C.(3,-1)
D.(1,-3)
考点分析:
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