函数在( )上是连续的． (A)(-∞，-1)∪(1，+∞) (B)

单项选择题

函数在( )上是连续的．
(A)(-∞，-1)∪(1，+∞) (B)(-∞，-1)∪(-1，1)∪(1，+∞)
(C)[-2，-1)∪(-1，1)∪(1，2] (D)[-2，-1)∑(1，2]

A.174.24.96:6088/Latex/latex.action?latex=Zih4KT1cZnJhY3tcc3FydHs0LXheMn19e1xzcXJ0e3heMi0xfX0%3D'
B.

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