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直线l是双曲线-=1的右准线,以原点为圆心且过双曲线的顶点的圆,被直线l分成弧长...
直线l是双曲线
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=1的右准线,以原点为圆心且过双曲线的顶点的圆,被直线l分成弧长为2:1的两段圆弧,则该双曲线的离心率为( )
A.2
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183512148423031/SYS201310241835121484230007_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183512148423031/SYS201310241835121484230007_ST/3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183512148423031/SYS201310241835121484230007_ST/4.png)
考点分析:
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