Look at the ____. It can ride a ____. Its ____ are big and its mouth is ____ too. Its tail is____.
新疆的地形特征是( )
若幂函数f(x)图像经过点P(4.2).则它在P点处的切线方程为( )
若点P(x,y)的坐标满足xy=0,则点P位于( )