????:1????????wx:????????????

2????????????

3?????

4??????

5??????

????9???????????????30?????????? “???? ????????????”???????????????????????29????????????

??“????”??,?????,??“???? ????”???????????,?????????????????????75?????????????????(?)????????,???????????????????,?“??”??????????,?????????????????????????

?????????????????????? ??

????,??????????,38??????,???????????????????,?????????????100??????,??C919???????,????“??????????????????????????”????????,?????,????????????,???????????????200?????????????????????????

?? ?????

???,????????????????,????,???????????????????,????????????????,?????

??,???????(????)????????,??,?????????,??????????????????75????????????,75???????????????“20???????????????????”,?“90?????????????????”;?????18????????????80????????????,????????;?,??,?????????????,???

????????? ?????????

????,???????????????????????????,???????????(??)

?????:???????