?
(??)????:???
???(??)????C919?????????????“?”
???? 1/111?17??,???????31????????????????????“????”??,??????“??????”“?????????????????”“??????”“?????????????”????,???????«????»???????
null
??????:?????
???? ????
?????:??????1???2280?
?????????????????????
????:?????????417.5??
?????????????:????????
??????????!PK???8000???
??????????:???????????
??:?????????0.57%??????30%
???:???????10%????????
???“??”??,???????????
?????:2016????????????????…
????:???????????????????
????!?????????136?????6.5%
23????????? ???????
?????????:4???????????
????!?????:??????????
?????????????????“????”
?????????????????????
?????????????????“??”
??????????????????
????????????????
????!??720?????????????
????PPP?????????:????????
????17039?????:????31826
????!?????:??????????
?????????????2???