??�??????�

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

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

??????? ???

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

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

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

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