????:1???????:????????????

2??????????

3?????????

4??????

5??????????????

???12??29?????? (???????????????)?????????(???????????)29??????,CR450?????????????

??CR450-BF?(?????)

????????????,CR450?????????????????????

????,?????450?,???400??,?????

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

???,??22%,?????????10%?

???????,?????????2?????,?????????????4%?

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

??????CR450-AF????????(?)

?????,??2018??,???????????????????,??????400????????“??????”?????;2021????????????400??CR450??;2022????????CR450??,????????????????2022??2023?????????,????????????????????????????CR450???;2024???(?????)

?????:????