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【单选题】
已知空间点 M ( 1 , 2 , 3 ),与点 M 关于 xOz 平面对称的点是( )。
A.
( 1 , -2 , 3 )
B.
( -1 , 2 , 3 )
C.
( 1 , 2 , -3 )
D.
( -1 , -2 , -3 )
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