�?????�

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

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

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

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

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

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

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