后轮定位主要有后轮外倾、后轮后束等。
参考答案：错
--How often does Gina take the bus to school?
--She_______ takes the bus because she likes walking there．
A．never
B．always
C．often
D．usually
A．机会多
B．有人缘
C．经济好
D．离香港近
