Gaokao Math Practice Question
11. 设 $B$ 是椭圆 $C: \frac{x^{2}}{5}+y^{2}=1$ 的上顶点, 点 $P$ 在 $C$ 上, 则 $|P B|$ 的最大值为
- A.$\frac{5}{2}$
- B.$\sqrt{6}$
- C.$\sqrt{5}$
- D.2
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