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过点P(0,1)与圆x2+y2-2x-3=0相交的所有直线中,被圆截得的弦最长时...
过点P(0,1)与圆x2+y2-2x-3=0相交的所有直线中,被圆截得的弦最长时的直线方程是( )
A.x=0
B.y=1
C.x+y-1=0
D.x-y+1=0
考点分析:
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