Ltage xyg

???????



      ??????1992??????????????????gsm?????pc??????????1999?????????????????????????????????gsm?????2001?????????????2500?????2002???3600???

???? ??2000??????????????????????????2000??????????????????????????2000???????????????4000???

???? ???2001?????????????????????2001?????????189?????20?????????159?????????59%???40????????????????????84.13%?15.87%???1??

???? ??2002?????????????300????????????????????100??????????3???????????2002??????????30?????????????????????????

???? ???????????????????80????????2005??????1600????????????????????????????????150????????0?1??????????????15?????????????????????????????????????????????????????????????? ????