????12??6? (???? ?????)?????????????????“????”?????????????????????6?????????????????????????????

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

??,????????????????????????????,????????????,??????????????????????????60%?????????????52%????????70%?,?????????????40??????????,????,???????????????????????????

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

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

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

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

????????:?????????????? ??“????????”

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

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

2????????

3?????vx

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

5??????

????12??6? (???? ?????)?????????????????“????”?????????????????????6?????????????????????????????

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

??,????????????????????????????,????????????,??????????????????????????60%?????????????52%????????70%?,?????????????40??????????,????,???????????????????????????

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

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

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

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

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