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

2???????

3?????vx

4????????

5???499

?????????2?????????7???????? (??? ???????????)???7??,??????????????4?,?????????????1????????????

?,?????????????????????????????1??????????0.7%,???0.2%?,????????????????????12?????????0.2%?

??????,?????,????????????,??????3??????????????

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

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

???????????????????,????????????????????????????????,???????????2022?????9???(????????) ??????????:??????????????