??2??????????21?????????????????? (??????????????????? ? ?)??????????????,?-??????????????????(????????“????”)???

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

????21????????????????,???????????????,??,???,????????????2??20?,???????200????????????????,??????????????????????????????800???????,????????????900???

“??15?????????????!??????????,???????????????20%,??????30%?”??,????3???125???

??? ??????? ?

???????,??1838??????????,???????????????22155??????????“??”?“???”????????????????????

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

????????,????????,?????????????????,????,??????????????????,????????????????????????????????????100????,???????6000??,??7000????(?????????)

????????????????:?????????????????

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