??(21?????????)???????????«??»,??????????3?1??????????????

?,????“???????????”?????????,??1000???“??????”???????????????????????????????80%,???????????????500????????????????50%?????????????????????????????????????,????“????????????????????”??,????????,?????????????????

(????????????????? ?? ????????)

????:?? “?????????????”????

?? ??“?????????”!????3?????????

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

2????????????

3???????150???

4??????

5???????

??(21?????????)???????????«??»,??????????3?1??????????????

?,????“???????????”?????????,??1000???“??????”???????????????????????????????80%,???????????????500????????????????50%?????????????????????????????????????,????“????????????????????”??,????????,?????????????????

(????????????????? ?? ????????)

????:??