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

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

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

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