A:1/3
B:1/4
C:6/11
D:11/12
— does the rain come from? —It comes from the clouds.
寻____ 具____ 波____ 洒____ 买____
录____ 真____ 泼____ 酒____ 卖____
已知圆C:(x+3)2+y2=4及点A(3,0),Q为圆周上一点,AQ的垂直平分线交直线CQ于点M,则动点M的轨迹方程为____