????:1????????????:??????

2???100???????

3????????

4??????????

5????????????

???????????????????????11??????23??? (???????????????? ???????????????????)???????(IFF)???????????????????????21????????23??????????????????“??????”?,??????????????????????????,????????????,??????????,????????????????

11?????23?????????,???(IFF)??21?????????????“????????”???????(IFF) ??

????????????????????????????,???5%??????????????????????????,?????

IFF????????????????,????5%????????????????,????????????????????????????????????,???????????????????????????,??????,?????,???????

??????????????????????(IMF)????????????????,????????????????????,????,????????????????????

????????,???,???????????,????????????????????????(??????)

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