??????“???” ?????????

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

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

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

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

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