?????????“??”!????3?????????

??

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

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

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

????:?????

?????????

??????????????“??”!????3??????????????

????????