6????15????? ?? ????? ? ??? ? ????????????? ???? 6??15????????????????  ??

???

???? 6??????????????????15?????  ????????????

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

????????????? ????????????? ??????????????? 1/6

??,6???15???????????,???????,?“????,?”???????????,?,???????????,????1325.5????,?1345.5????????????????????????????

???:???

?? ?? “?????????”_????

?? 6?15?? ?????????????

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

2??????????

3?????????????

4??????????

5????????

6????15????? ?? ????? ? ??? ? ????????????? ???? 6??15????????????????  ??

???

???? 6??????????????????15?????  ????????????

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

????????????? ????????????? ??????????????? 1/6

??,6???15???????????,???????,?“????,?”???????????,?,???????????,????1325.5????,?1345.5????????????????????????????

???:???

?? ??