?? ??“????????????????”
????:1?????????:???????
2??????????
3???app_????
4???mm??
5?????????
?7??21???? (??????????? ?)7??20??????????????????,???????,?????????????
???????????????“?????????????????”????????????,????????????????????????,???????????????????????????????
7???20?,?????? ??????????,??????????????????????«?????????»«???»?????????
????????????????????,????????,??????????????????????,?????????????
???????,???“???????????????????????”????,???????????????“????”??? ???????“???”??,????,??????????????????118???,?????????500???????C919???“???????????”????????????????C919?10%?????50%???????????50%???????90%??
???????????2030?,??????????1000?????????????????????,?,?????,??????????,???,?????????,?????????“?????”???,?????????“??????”?
?,?,????????????(????????)
???:???