???“?????????” ??????

????:??????150?????:????????

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

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

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

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