A. What about you?
B. By bus, but sometimes I ride to school.
C. I live far from school.
D. I often go to school by bus.
E. How far is it?
A: Where do you live?
B: ____
A: ____
B: I live 10 kilometers from school.
A: How do you usually get to school?
A: How long does it take?
B: 25 minutes by bus and about 50 minutes by bike.____
A: I live near our school.
B: Do you usually go to school on a bike?
A: No. ____
①仅凭兴趣学习 ②自主学习 ③探究性学习 ④与同学合作学习
把两个相同的小球接触后分开，两小球相互排斥，则两球原来带电情况不可能的是（ ）
的图象，只需将函数
的图象（ ）
2FeCl2+2KCl+I2；