A:接触的物体一定有力的作用
B:不接触的物体之间没有力的作用
C:力是维持物体运动的原因
D:力可以改变物体的运动状态
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A. The hat is beautiful. It's size 5.
B. These shoes are new and nice.
C. The T-shirt is too small.
D. I wear a red dress. It is size 13.
- is it? -- It's white and red.