????:“???”??,???????????

????:???????:????????500???

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

???????,???????????????????“???????????,??”???????????????????????????,????????????????????,???????,??????????????????????,??????????????????,?????????????????12306???????,??????????????????????????????C919?“?????”??????“??????????????”???????,??????????????????????????“??????????????????????,??????????????”?????????,???????

???,????????“??????????????????????????????????”????????????????????????????12306????,???,??????????,??????,?????????????????;????????50???????????;?????“?????”……?????,?,????

????????????,?????????????????“????,????”????????????,??,??,????????????????????,??????????,?“???????”??????????????????????????????????12306????,????????????????,???????????????,??,???????????,????????

???,?????????????????????????,????????????,???????,?????“???????”?????????????????????,????,????????????????????????!(?????????????:??????????????;????????????:???)

??:??

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