Gaokao Math Practice Question
已知集合 $A=\{-1,1,2,4\}, B=\{x|| x-1 \mid \leq 1\}$, 则 $A \cap B=(\quad)$
- A.$\{-1,2\}$
- B.$\{1,2\}$
- C.$\{1,4\}$
- D.$\{-1,4\}$
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