??�???????????�????

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

????????11??22????????(?????????????????????)??????22????????????????????????,??????????????????????????????????????????7????????,????�???�??????�????�????????�????�?????�?�?

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

??????????????????????????,???,????�??�???????????????????????????�????????�???????????10?????,????�1(????)+N(???)+X(????)�?????????????????????????,?,???�??�??????????????????�????�?????????????????????�????????�???????�???�,????

???????,??????????????????,??????,????????????????,????????;??,???,????????????????????????????,??????????????????????????

????,?????????????????????????????????????????,???????????????????????????????????????,??????????????????????????,????,??,????????(????)

?????:?????