简述中国重汽自主创新的四项措施。

补全对话（5×1’）
A: Where do you live?
B: __小题1:__
A: __小题2:____
B: I live 10 miles from school.
A: How do you usually go to school?
B: __小题3:___
A: How long does it take?
B: Twenty minutes by bus and about 50 minutes by bike. __小题4:___  
A: It’s near to my school.
B: Do you usually go to school on a bike?
A: No. __小题5:___

A: What about you?                   B: I ride a bike. C: By bus, but sometimes I ride the bike to school. D: I live far from school.               E: I usually go to school by bus F: I usually walk to school              G: How far is it?