A:will go; is fine
B:goes; is fine
C:will go; will be fine
D:goes; will be fine
— Helen, would you like to go to the park with me?
— .
已知函数fx=-23x3+2ax2+3xa>0的导数f'x的最大值为5,则在函数fx 图像上的点1,f1处的切线方程是( )