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

2?????90????????

3???????

4?????????????

5??????????

??????12???????????????????????????20?????????????? (????????????????? ???)????????,??????????????????????

“??????,?????????????????????????????,???????????”??????????

????????????,???3??,?????,???????????20??????????

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

?,???????????????,??“???????????”???????????,???????????,????????????????

??????????3000????????,?????,?????????????“?+?”???????????????????????,????“?????????????????”??????????????

????40???,?????????????????????????????,????????????????????

“??????????????????????,????????,??????,?????????????????”???????

????????,?,???????????,?????“?????30??”???????????

???,????“??”???????????12?????,100?????????60???????1??10???,???33.32????????,????71.62???,??????“????????????????????”?

“????????????”??“??????????”????????? ??

“????????????‘??’??????,??????????,?????????,??”????????????????????,??????,??????????(??????????)

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