?? ?????????????????????????????????????????
![](https://image.chezhanri.com/2019/0402/20190402172110310.jpg)
????:1??????????:?????????
2???????
3??????????
4???????vx
5???????
??????????????7?????30??(???????????????)??????????29????????????30??????,??????????
?????????,???«?????????????????????»,??????????????????“??????????????????????????????????”“?????????????????????????????????????”“???«??»??”“???????????”“???”?,?????????????????????????,???????????????????????,??????????????????????????,???????????????????????,?????,????????????????????«???????»?????,??????????????????
29?????????????????,??,??C919???????????
??????????????????:??