I am strongly ________ keeping animals in the zoo, because I think animals should also have the right to enjoy freedom.
A:up
B:down
C:for
D:against
在坐标系中作出一次函数y=﹣3x的图象
0.08×____ =0.8 8.18÷____ =0.0818
若曲线C上存在点M,使M到平面内两点A(﹣5,0),B(5,0)距离之差为8,则称曲线C为“好曲线”.以下曲线不是“好曲线的是( )