— Could you tell me ___________?
— Sorry, I don't know. I will call you when he comes back.
科技人员成功研制出一种新型催化剂,可将二氧化碳转化成液体燃料,反应的微观示意图如下。有关该反应的说法正确的是( )
已知A(﹣1,0),B(1,0),点C、点D满足|AC→|=4,AD→=12(AB→+AC→),则点C的轨迹方程是____;点D的轨迹方程是____