如果物体的位置随时间而变化,就认为它在运动。( )
A.A body whose position changes with time is said to be moving. B.If a body change its position with time, it is considered to move. C.If a body is changing its position and time, it is said to be moved.正确答案A
如果物体的位置随时间而变化,就认为它在运动。( )
A.A body whose position changes with time is said to be moving. B.If a body change its position with time, it is considered to move. C.If a body is changing its position and time, it is said to be moved.正确答案A