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已知A(3,7),B(5,2),将按向量平移后所得向量的坐标是 ( )
A.(1,-7) B.(3,-3) C.(10,4) D.(2,-5)
已知(5,7),(2,3),将沿=(4,1)平移后的坐标为 ( )
A.(-3,-4) B.(-4,-3) C.(1,-3)D.(-3,1)