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已知满足的实数x、y所表示的平面区域为M、若函数y=k(x+1)+1的图象经过区...
已知满足
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的实数x、y所表示的平面区域为M、若函数y=k(x+1)+1的图象经过区域M,则实数k的取值范围是( )
A.[3,5]
B.[-1,1]
C.[-1,3]
D.
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