?? ??7???8?9???????????????
![](https://image.chezhanri.com/2019/0809/20190809160911839.jpg)
????:1?????:???????
2?????
3???????
4?????????
5?????
????????????????????????7?2??????(??????????????????????? ??????????????????????) ??2??,????7????????8?9???????,???
?????????????????????????????,7???????????8?????????????????????8?9??,?,??9??,??????????????,????????9???
8????????“????????”,?????????
??,??????????????????690??,??40??,????????????????????,?????????????????86.67%?
??,?????????????????????????????????????????????????????“?”???????????,???????????????????????(????)??(??)??????????????????????????????????????????????????152??????????????,???22.03%;??????,????????170??,??????????24.64%;????????470???????????,???68.12%?(??) ??????????????????:???????????????