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