????:1?????????:???????

2??????????

3??????100????

4???????

5??????

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

??????????,???????????“???”???????????????????????????,??????????????????????????,???????????????,???????……???????????????????,????,????????????,?????“????,?????????;????,???????”?????,????????????????????????????????,???????????????????????????,?????????“????????”???“?????”,???????????

????????,?????“??????????”??????????????,????????????,?,???????,?,???????????????,???,?,??????????????“???????????????”??????“????????????????????”????,????“???????????”????“????????????????????????????????”???……?,???????????????????????????,???????,???????????,?????????????????“?????????????????”???????“??????”??,???????????????????,?“????”????“?????”,?????

???????,??“?????”???????????“??,????????????”,???????“????????,????”?????,??????????????“????????????????”??,?????????????????“??????”???“???”???????,????????????“????”?????????“??”?,???????C919??……?,???????????????????,?????“??????????”?????????,??????????????????????????“?????”????????“????”?????“??????”,????????“????????”“????”“?”,??????,??,????,?,??????(????:??) ????:???????????