(B) lim f(x)=0.-|||-(C) lim _(xarrow 1)f(x)=infty . D)limf(x)不存在,且 lim _(xarrow 1)f(x)neq infty A、AB、BC、CD、D


  • A、A
  • B、B
  • C、C
  • D、D

参考答案与解析：

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