读图，回答：

物质是由大量分子组成的，分子直径的数量级一般是多少？能说明物体内分子都在永不停息地做无规则运动的实验事实有什么例子？在两分子间的距离由r₀（此时分子间的引力和斥力相互平衡，分子作用力为零）逐渐增大的过程中，分子力的变化情况是？

口语运用
A: Hi, Tom.
B: Hi, Mary.
A:____ 
B: I’m doing my homework.
A: Do you want to come to my house after school? ____ 
B: That sounds great! ____ 
A: It’s on Long Street. It's a quiet street.
B:____  There is a school on it.
A: Yes, and my house is across from it.____ 
B: OK! I'm sure to see you.
选项：

E.  I know the street.

按拼音写汉字