????:1????????:??????100

2?????300?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??,?……

???,??????,???????????????????????,????????????“??”?“??”,???????“????????”????????????????“???”?????????????“??????”?????????,?????,????????????,??????“????????”??,?????????????????????????,???????????????????????????????????????,???????,???“???”?,???(?? ? ?) ??:??