A:Strange as might it sound
B:As it might sound strange
C:As strange it might sound
D:Strange as it might sound
过抛物线x2=4y的焦点作直线l交抛物线于A,B两点,分别过A,B作抛物线的切线l1,l2,则l1与l2的交点P的轨迹方程是( )
____的手法 ____的追求 ____的人物 ____的惯手