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【单选题】
过点（1，2，1），且垂直与向量（3，4，5）的平面的一般方程为：A.
3(x-1) + 4(y-2) + 5(z-1)=0
B.
3x + 4y + 5z -16 = 0
C.
3(x-2) + 4(y-1) + 5(z-1) = 0
D.
3x + 4y + 5z = 0
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