Gaokao Math Practice Question
椭圆的中心在原点, 焦距为 4 , 一条准线为 $x=-4$, 则该椭圆的方程为 ($\qquad$)
- A.$\frac{x^{2}}{16}+\frac{y^{2}}{12}=1$
- B.$\frac{x^{2}}{12}+\frac{y^{2}}{8}=1$
- C.$\frac{x^{2}}{8}+\frac{y^{2}}{4}=1$
- D.$\frac{x^{2}}{12}+\frac{y^{2}}{4}=1$
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