在下列运动状态下,物体处于平衡状态的有( )
A:做匀速圆周运动的物体
B:做平抛运动的物体
C:上升到最高点的蹦床运动员
D:相对静止于水平匀速运动的传送带上的货物
一个人活在世上,做人的良知是( )
— I'm afraid I can't get to the museum on time because the traffic is too busy.
— Don't worry, Millie. I'll keep________ until you come here.