?4?????????????????!?????

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??(16?????),???????????,????

??,???????2024?????????????(???)?????1000???,??????????????????????????????????????????????,?????????????(?,??)??????????,??????????

????

???????????????,?????????????????????,???????????,??????:

(1)???160??:

???????:????????????,????????????????0.45?????

??????:????????,?????????????????????????????020??????(?20???????),??0.48??;2040????(?40?????????),????????0.44?????????????????;40??0.40??????

(2)?????????????160?,????????????????????0.37???????

????????:

(1)?160???????????:

????????:??????=??????×???

???????????:???????????=??????+???????????+??????,???????????????=?????×??????????????????????

(2)????????????????160??????????????,?=??×????????

???,?????;??????????????,??????????????????????????,????????0.5???????????,0.5????????????????1???????????????

????4???(???,?160???????,??10????,?????9.3??????;?????????160??????12.2?????)?????????????????,?????????????,???????????,??(??????),???,???????????????2024???????

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