A:天宫一号的轨道半径大于同步卫星的轨道半径
B:天宫一号的周期大于同步卫星的周期
C:天宫一号的角速度小于同步卫星的角速度
D:天宫一号的向心加速度大于同步卫星的向心加速度
— Do you think I should wear an orange shirt today?
— Yes. orange can bring you good luck, it is good for your interview.