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函数f(x)=(x-3)/(x^2-3x+2)的间断点是()
A.x=1,x=2
B.x=3
C.x=1,x=2,x=3
D.无间断点
A.x=1,x=2
B.x=3
C.x=1,x=2,x=3
D.无间断点
参考答案
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