????:1???1960????:????

2????????

3????????

4???????

5??????????

???9??????????????27??????? ??:???????

???????????????? ??

????????????????,????????????????????????????????BR450???????????????????????????,?,??

??????,???????25.86?????????????????????,?????????????????10???????????????

???????????????????????9???22????????,????????,????????????????? ? ???????

????????,?BR450????,?????????,?????????????,????,?????,??????,????“????????????”,????

???,?????????,????????,?9???15??17??,??????????????????10????????,?,“???”?

????,?????,?????,????

?????????????9??????????????22?????????,?,????????????? ???????? ??????

????????????????,????????,??????300???????,??,????????????????????????????????????????????????????

??????????????????,???????????????????,????????,???????????????????

????,????9?????13??????,?????2024?????????????18?????,???????????????50.6%???????2023?????????????86256?????,????????

??????????????????,???,??

????????????,???,?“???????????????????????”?????????????????????,?????????,??????????????

?,?????500?,???????

“???5???”?????????????????????,?????????????????????,????????????????,????????,????

???“?????????,??,?????”?????,“??????????15?,????????????????????”(?)

??:???