Gaokao Math Practice Question
1. 已知集合 $A=\left\{x \mid x^{2}-3 x-4<0\right\}, B=\{-4,1,3,5\}$, 则 $\left.A \cap B=（ \quad\right)$
- A.$\{-4,1\}$
- B.$\{1,5\}$
- C.$\{3,5\}$
- D.$\{1,3\}$
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