?? ????????????????????????
![](https://image.chezhanri.com/2019/0712/20190712103957371.jpg)
????:1???????:??????500?4???
2?????98
3???????????
4???????
5???????????
??????6??18?????(? ????? ??????????????????)18??,???,???????,????????????????????(???????????????“???????????”)????????????????????????????????????
?,?20.8?????????,?????????,?????24???,??
?497????????????,?????????????????,??(32+93+240+93+32)??,?,?,???????????????????????????????????????????????????????????????????
????621??622??,????????????????,????43.2??????,?5.5?(??)×2.5???????????????????????(????????)?????,???????????4.0?,??????????????11?,???????84????????
??????????????????,????????????????????????,?????????,??????????????,?????,?????????????????,????????????????????????????????????????????????,???????,?????????,?????????,??????????????????????
??????????????????????????????????,???????????????????????“?”??????????????????,????????????????????????,????????????,???????????????????????????????,???(???)
??????:????????????