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

2?????90????????

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

4?????300?????

5???????

????????,??????????????????????????6???????30???,?,???????????

«????»?,????????????????30????????,??,??????????????????????2.44????3?????????????????????????????????????????????????,???????

2018???????10??2019????3?????????,??,????????346???,???737 MAX8??(?? ???????????)

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