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Gaokao Math Practice Question

4. (5 分) 已知 $F$ 为双曲线 $C: x^{2}-m y^{2}=3 m(m>0)$ 的一个焦点, 则点 $F$ 到 $C$ 的一条渐近线的距离为()

  1. A.$\sqrt{3}$
  2. B.3
  3. C.$\sqrt{3} m$
  4. D.$3 m$

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