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(2002•兰州)点P(-1,3)关于y轴对称的点是( ) A.(-1,-3) ...
(2002•兰州)点P(-1,3)关于y轴对称的点是( )
A.(-1,-3)
B.(1,-3)
C.(1,3)
D.(-3,1)
考点分析:
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