?? ???????????????????????????
![](https://image.chezhanri.com/2019/0926/20190926161607183.jpg)
????:1????????:?????
2???3?400????
3???????????
4?????????
5???????
?6?14????????????????????? ???????????????????,???????????????6?????14???????????????????????????????
?????:6??????????????8?????????????????????????,????40%?,????30?????????
????????????,???????????????????????????,6??????????8??????,??????40%??,??????????30?????????????????,?????????????????40%?,?????????????????????,??????????,????????,?????????,???????????????????????????????
??????,???????????????????,???????????????,????????????????????????????????????????,????????,?? ??????????????????????:???????????????