与双曲线有共同的渐近线,且经过点的双曲线的一个焦点到一条渐近

与双曲线有共同的渐近线,且经过点的双曲线的一个焦点到一条渐近线的距离是                                                            (    )

 A.  1            B.   2           C.  4              D .8

答案

B

相关题目

-Mary, would you like to come to my birthday party? -_____.   A. Of cours
-Mary, would you like to come to my birthday party? -_____.   A. Of course, you couldB. Sure. Go ahead C. Sorry, you may notD. No, you mustn’t
Although men and women have been growing crops for thousands of years, they have
Although men and women have been growing crops for thousands of years, they have not always had enough to eat. Even today, many people in the world go hungry, and even die of hunger. If we are to grow
下列有关遗传信息传递过程的叙述,错误的是( ) A.DNA的复
下列有关遗传信息传递过程的叙述,错误的是( ) A.DNA的复制、转录及翻译过程都遵循碱基互补配对原则 B.核基因转录形成的mRNA穿过核孔进入细胞质
我们知道,代数式包括整式、分式以及根式。 (1)请你写出
我们知道,代数式包括整式、分式以及根式。 (1)请你写出一个只含有字母的二次三项式,并且不论当 为何实数时,该代数式值恒为正数,并简要说
若, 则为的         心.
若, 则为的         心.
类推思维是化学解题中常用的一种思维方法,下列有关离子
类推思维是化学解题中常用的一种思维方法,下列有关离子方程式的类推正确的是(     ) 已知类推 A.将Fe加入CuSO4溶液中 Fe+Cu2+=Cu+Fe2+将Na加入到CuSO4溶
–I’m really angry at John. He never listens to me.    --___________, Mar
–I’m really angry at John. He never listens to me.    --___________, Mary. Things will work out.  A. Take your time    B. You don’t say     C. Take it easy           D.
如图所示,已知电源电动势E=220V,内阻r=1Ω,当接入固定电阻
如图所示,已知电源电动势E=220V,内阻r=1Ω,当接入固定电阻R=4Ω时,电路中标有“3V 6W”的灯泡L和内阻r=0.5Ω的小型直流电动机均恰能正常工作,求:

最新题目