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

?????????????1??21???? ??????????:???????????????

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

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

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

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

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

“??,???,???????????????????30%?????,??????20%?”????????

??????????????????????????,?????????????,???,????????,“?????????,????100?????????????????????(?,???????????),????????,??????????”?

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

???????????????,????????????????,????????15?????,?60%?

???,????,????????????,?,?????,????????????80???

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

“???????????????????3?????,???????????,???????????????30??,?????????20%?”?????????????????????(???)