???“??????” ?????????

????:?????????:?????????

??2???18??? (?? ??????)????????18?????,????????????????,??????????“??”,???????????????????,?“??”??????????????,???,??????????????

?“???????”?????????????????,???????????????????,????,?50????????(?????)?????,????????????????????????????500???,???1-3?????,???????0.3%-0.5%/?????????,???????????????????????????,???,??????????????,?,?????????

???,“???”??????????????????????????????,?????,?????,?????????????20??????(??)?????0.3%/???????,20???0.5%/???????????????????????????????????????????????????????????????????

??,????????????????“?????????”??20???(???????????????)??,?????????????20?????????????,????,????????????????????????????????????????????????????????????????????(??) ?????????:???