已知抛物线C：y²=mx（m≠0）的准线与直线l：kx-y+2k=0（k≠0）的交点M在x轴上，l与C交于不同的两点A、B，线段AB的垂直平分线交x轴于点N（p，0）．

（1）求抛物线C的方程；

（2）求实数p的取值范围；

（3）若C的焦点和准线为椭圆Q的一个焦点和一条准线，试求Q的短轴的端点的轨迹方程．

Applications put computers to praticalbusiness (1), but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store(3).A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time.

The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail.

1（）

A．coupled

B．dependent

C．independent

D．related