????:1????????:????300????

2???????

3?????????

4???????????

5??????wx

?????8????????25????? (???? ??)??(?)8???25??????,???????????????????????????ARJ21?,????44?,??????????????????????????

8??????25???????????????????????,?????????ARJ21????????????????/???????????????

?????????????ARJ21????????“???”????????????????

??????,?,??,????????????????4411?????2020?7???????????,ARJ21???,??????????????15???,?,??????????????ARJ21??

8?25?,??????????????????ARJ21?????????????????????????????/??????????????????

??,???????????,?????,?????,??,?????????ARJ21???????????????????,???ARJ21?????

2024????7?????,????????ARJ21????????????

??????:????????????????? ???????????? ??????????????

8??21??????,?ARJ21“???”???????,ARJ21??????????,?????????????,????????ARJ21????,?????????????????????(???????????????)

??:??