??
??,??????????1??,???????????500?????????,???????????????,???253????
?????????????,????,10????????????,??????????
???????????? ??:??,????????????,?????
???????????,?,?????????????????8000??,???1000????????
??????????????? ???????????????????:??????????1??????????????,??????3.3??,??????????????,????????????,????????? ?????????????:?????
?????????
??????????????1???500??? ???????????????????????