A:物体做离心运动时,将离圆心越来越远
B:物体做离心运动时,其运动轨迹是半径逐渐增大的圆
C:做离心运动的物体,一定不受到外力的作用
D:做匀速圆周运动的物体,因受合力大小改变而不做圆周运动时,将做离心运动
世界上面积最大和最小的大洲分别是( )
如图,直线a,b被c所截,a∥b,若∠1=35°,则∠2的大小为( )
看图写出乘法算式和乘法口诀。
____×____=____;
____×____=____;
口诀:____。
have, at, like, usually, watch, homework, after, play, come
I have a friend. His name is Li Daming. He often gets up ____ six o'clock in the morning. He ____ breakfast at seven. He goes to school five days a week. After school,he ____ plays games for half an hour. Look! What is he doing?He is ____ basketball. In the evening he does his ____ and he likes listening to music. He often ____TV for half an hour____ he finishes his homework. He goes to bed at ten o'clock. Do you ____ him?