??????C919??????

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

8??29?????9?18?,?B-919X?C919??8?28????,?C919????C919????????????????????????????????????????????? ??????????????????????????? ?????????????????????????????????????? 8??????29?9???18?????,??????????????????????????????????????B-919X?????????????????C919???????????????????????????????????????8?28??,?????C919???????C919???????????????????????????????????????? ? ?????????????????????????????????????? 8?????29??????????????????9??????????????????36?,?????B-919X?C919??8???28?,??????C919?????C919????????????????????? ? ? 8?29???????????????????????????9?????18?,?????B-919X???C919??8?????28??????,???????????????????????????C919????????C919??? ????? ????? 8???????????????????????????29????9???18?????,??????????????????B-919X?????C919??????8??28???????????????????????????,?C919????????????????????????????????????????????C919????????????????????? ? ??? 8?????29?9??????????????????36?,?????B-919X??C919?????8?28?,??????C919?????????C919??? ???? ? 8?????29?????9??????????????????36??????,??????????????????B-919X????C919?????8??????28???,?C919??????C919??????? ? ?????  8?????????????????29?????9?36????,??????????????????????????????????????B-919X?C919??8?????28?,?????????????????C919????C919??????? ????? ??  8?????29?9?????????????????36?,?B-919X?C919????8?28?,?C919?????????????????????C919???????????????????????????????????????? ?????? ?  8???29??9?36???,?????B-919X?C919?????8?28??????,?C919?????????????????????????????C919????????????????????????????????????????????????????????? ????? ????  ??:??????