?? ?????“??”??????????????“?” ???220?
????:1???????????:??????
2?????????
3???????
4???????
5?????
?????????????????????????|????????????????“??”???????“??” ?220???
1953??,????;1956??????,???;1954????????????,????????5???……????????????,??????????????????????????????,??;2023???,?????3011??????????,??15????????????;2017???????5?5???????????????????????????,?C919?,???????????
???????,??????????????????????,???????,?,??????????????????????????????;??75??????????????????,???,??????????????????????????????????????,?500?????,????220??????????????????,????????1952?120??2023?39.9???,???????????10.5%??????????????????,??????????????????????????2022???????30.2%,?????????????
????????????????,??????????????,?,???????????????????????????“???”???????,????????2023???????????????????,???????????????????????“??”?30.3%?54.0%?22.8%?2024???1-7?????????,?348.5???,??100???????????;????????????????????????15.7????????3.3??1.9???43.0?????????,?……
????????????????,??????????,???,???????“??????????????”???????“??????”,???“?????”?????????????“???”??“??”???????,?????????,????????,????“???”????????,???????????????????????,???????????,????,?“????????”???,???????????????(???????????? ?? ????) ????????:???