The crowd cheered wildly at the sight of their favorite star, who was reported _______ the Film World Award.

A．winning

B．having won

C．to have won

D．to win

在圆轨道运动的质量为m的人造地球卫星,它到地面的距离等于地球半径R，已知地面上的重力加速度为g，则卫星运动的加速度为        ，卫星的动能为          。