??6?C919????????? ????????3200??

????:2024-07-02 05:41:35 ??:????

????:??????:??100????

?????,???????2024????,???????7??????1??8?????????31??????62????????,??6???C919?????800??????,?1002?,????????249???;???3213?????,????2019???????????13%,??????2019????102%?