A:粗放牧牛带
B:绵阳与经济作物混合经营带
C:羊、牛经济作物混合经营带
D:粗放牧羊带
— Sorry, I didn't pass the exam, and then what should I do?
—I think perhaps you should be careful next time.
不论m取何实数,抛物线y=2(x+m)2+m的顶点一定在下列哪个函数图象上( )
—________