题目

设椭圆(φ为参数)上一点M与原点的连线与x轴正方向所成角为,求点M的坐标. 答案：解:把椭圆化为普通方程为+=1,设OM:y=x,由解得M(,).(    ) 1. ―How do you like the TV play?      ―Funny,       the music of it is not so good.A. so   B. though   C. or   D. because