?? ????????????????????????
????:1??????:??????vx
2?????spa????
3????????2023
4?l????
5?????????
?????????????????????????!
???????
????
“???????????????”“???????????????????????”
????“??”
??????????????
???
????????
????=?????????????????????(?????)??+??????????????????????+??????????
??
?,??????????,??????????,??
??????:????????????????????????“?????”?
?????
??
?????,????????????????,??(?????????/?????),?,??????????????????????????
?????
?,???????????????
?????????????????????????????????????????????????????
????,??
??????????
???????????????????,??????
???????????
???????,????4500?????????,??????4200????,??3600??????,???????300??????????
????300??????????
?????????,?????????,??????4200????????????????-3600????????????????=600?????????????
????
?????????????
????
“?”?
???????
??
“???????????”????????
????
????
????:“?????????”??????
?????????:????