?? ????????? ????????“????”????
![](https://image.chezhanri.com/2019/0718/20190718171803342.jpg)
????:1??????:??????????
2?????
3???????
4??????????
5???????
????6?????????????21????(? ???????)????????,????????????????????????????????????????????21?,?????????????????9721???????,?????????“?????”???????????????????
![](http://i2.chinanews.com.cn/simg/ypt/2024/240621/87758998-4328-4519-b5eb-4585d7f3ed40_zsite.jpg)
?21???????16?,????????????????????????????????????????44.1??????95%????????????;???16????,???
???????I?????????????????,???????????????????????????9721?????,???????????????????2793?????,????????68????,??????????189????
?250??????????????????????????,???20???????,??????????????,??????????????????,?,??“??,???????????????????”?,??????????????????????,??,????,????,?????????????????
???????????20?,???????21??????????????????????20????,??????,?????????????12???????,??,???
?????????????,??????????????21??????????????????7???????16.19??,???????????????????,????????,???(????)
???????????:????????