????:1?????????500???:??????

2?????95???

3???????

4???100???

5?????vx

?????????13??????,70??????,?????????????,??,???????????????????????????????????????????????:

????????????????40??,??78.6???????????,???????????????8?????????????,?????????????????14??????,????????????????,??????????????????????

???????????????2023???????,???????60?????????2.97????,??????????????21.1%;65??2.17????????,????15.4%,?????????????,??????????????2012???????,??????????????????300??????????????????????,??????????????????????,??????,??????

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