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

?2??4? ???????:??????2??3??,?????????????????(???????????????)???????,?????“M23???????????”???(?????????)?????????????,?2??????????4????

?,?????????????????????,??,??900????????????????“M23??”?????????????(?????)?,?2900???

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

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

????????,??(??????????)????,?????????“M23???????”????????????,????????????,??????(?)??“M23??”??????????(??)???????????,?1994????????????

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