• 1. 将抛物线y=2x²-12x+16绕它的顶点旋转180°，所得抛物线的解析式是（    ）．

  A . y=-2x²-12x+16 B . y=-2x²+12x-16 C . y=-2x²⁺12x-19 D . y=-2x²+12x-20