(____) It's so big!
(____) It has a short tail.
(____) It's an elephant.
(____) It has a long nose.
(____) It has big ears.
已知抛物线y=ax2+bx+c的开口向下,顶点坐标为(2,-3),那么该抛物线有( )
观察下图,回答问题。