A:y=﹣2x2+8x+3
B:y=﹣2x‑2﹣8x+3
C:y=﹣2x2+8x﹣5
D:y=﹣2x‑2﹣8x+2
Our parents can do anything for us we make achievements in our study.
如图是植物细胞的相关概念图,下列描述错误的是( )
求证:BF=AC.