?? ???????? 4??????
![](https://image.chezhanri.com/2019/1202/8ac527dd6dc212b1227a3e44501618b0.jpg)
????:1??????????:?????
2???????????
3?l????
4?????????????
5???????????
???????6???????????28??????????????? ??:???????28???????8??????,?????14??
?????,??10??,?????18??;??,?????6100????????????????????????????5.8????,?????????????????????340?????????????
??????????,6?,?????????????????4???????????????????????????-???????????????????
???????????,???????????29?????
?????5??19????????????????????,???????????????????,???????50?????????????????????????,?????
?????4?????,??????????,????50%???????????????????????????????50%,??????,???????????????????(??) ?????????????:??