?? ?????????? ?????
![](https://image.chezhanri.com/2019/1226/59bd3c18ddfc85a0c6d09807bc4fc05a.jpg)
????:1????????????:??????????
2???????50?
3????????
4???????
5??????
“???????”???????????
????????????? ????????
????“????”?????????
?????????,50??,??????????????????????,??????,??????????
????,???????????,??????????????????????????????,???
???????????,?????????????????????,??????
???,???????“??????????”???,???2????????????,????
???9???,???,?????????????????????,???“????????????200???????,???????150??????”????????????????????,???
“25.7??????????????”????????????????????????,????????“?????,????????????”?????400???????????,????????????????????
“??1000????”????????,?????1???,?1.5???,????
??????????????????????……?????????,????????????????????????????????????,????????????????????????????????????????????10????????100???????????????,??,?????????????????,??
“???????????,???,??????????????,???????????????,?????????????,??”?????(??? ????????????????????????????????????????????????????????????????????????????????????) ?????:??????