???“?????????” ??????

??

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

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

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

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

?????????

????????“?????????” ???????????

????????