Yesterday was Sunday. Tim got up at seven o'clock. He ate some bread and drank some milk for breakfast. He went to the park with his brother Sam at eight o'clock. It was rainy in the afternoon. But they had a good time yesterday.
下列四幅画中，明显属于明清时期文人画的是（ ）
一小球从静止开始做匀加速直线运动，在第15s内的位移比前1s内的位移多0.2m，则下列说法正确的是（ ）
关于物体的运动状态改变，说法正确的是( )
