(????????????)??????? ???

????:????V:??sn??

??12??????3????????? (???????????????? ??????????????????????????)????????????,???,?????????,?????????????,????????

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

???????????????:“??????,????????????????????6??,?1????”

?????????,??,?????????????“????+??????+????????+??????”??,?????????????????????????????????,??,???????,??200???,??????100??1400??500???

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

?????:“??,??,??,?????”

??????,??????????10??,????????????

“??,?,???,?????????????????????,????‘????????????+???????????????’???,‘?????????????????????’‘????’??,?????”???????????(??)

?????:????