%%

Gaokao Math Practice Question

设 $F$ 为双曲线 $C: \frac{x^{2}}{a^{2}}-\frac{y^{2}}{b^{2}}=1(a>0, b>0)$ 的右焦点, $O$ 为坐标原点, 以 $O F$ 为直径的 圆与圆 $x^{2}+y^{2}=a^{2}$ 交于 $P$、 $Q$ 两点. 若 $|P Q|=|O F|$, 则 $C$ 的离心率为

  1. A.$\sqrt{2}$
  2. B.$\sqrt{3}$
  3. C.2
  4. D.$\sqrt{5}$

Want to know if you got it right?

Answer this and thousands more real Gaokao previous-year questions free, get graded instantly, and climb the global ranked leaderboard.

Practice Gaokao free →

More Gaokao Math questions