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

??

????????????????2??9????????,?????23?,?????????1????????????????1??????????,?????????????????????????????????50????,?49?????,?????45?????????????,??2???????10???????????

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

???,?????????????1?????????????????????????,????????9??30???????????????1???????????1????????????,????????????1????????????1???,???????????????2??????????????2?3??????3,???????,??????????????????????,????????

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

??????????????????????,?32?,?????????(VAR)??????,????????????????,??,????????

?????????????????????????,????????,??????????????????????9??????????????1?????????,?????????????50????????????,???????????????????,???????????,???????????

??????????,?,2??????????12???????????,????????????,????????????????2???????????????20????????????????????,???????????????,???????????????,?????????????????????

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

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

?????????

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

????????