?? IFF??????????????
????:1???????100:?????
2??????????????
3????????????
4???????
5???????
??????????????????????????11?????????23???? (??????????????????????? ??????????)??(IFF)???????????21????????23????????????????????????????????????????????????????????????????,?,?????????,??,??????????
11????????23??????????,????????(IFF)???????21????????????????????????????????????????????(IFF) ?????????????????????????????????????????????????,???5%???????????????????????????,??????
IFF????????????,????????????5%???????????????????????????,????????????????????????????,??????,??????,?,?????????????????????
?????(IMF)???????,?????,????,????????
?????????,??????,??????????????????????????????????????,??????(?)
????????????????????????:??