?? ?????500????????????????
????:1?????????????:????????????
2?????
3????????
4?????
5????????????
???12????2?????????????(????????????????????????????? ????? ??)?????????????????12???2??????????????????,?????14??????????????56???,??????????500??,?,??????
??????????????????????? ????500???????????15.194???,??,??,??????,????,??????????????
??,??????????????????????????,??41??,????12.1????????????????????????,????????????????1.55?????,?,???????????????
?????,?????????????????????,???????,??????,?,????????????
????????,???????????? ??,??5????????????????2???????????32????????“??”,????????????????????????????????????????????????????????????,??,????????????????????????
?????????????????????????????,?????????????????,?????????????????????????????“??????????????”“???????+??”??,????????????????(?)
?????????????:??????