????:1???????vx:??92?????

2???????

3???????

4???????

5???????

?11?????????????22?????? (??????????????? ???????????????????)????(IFF)????????????21????22????????????????“?????”????????????????,?????,?????,??,???????????

11?????????22???????????????,???????????(IFF)???21??????????“?????????????????????”?????????? ???????(IFF) ???????????

?IFF?????????????????????????????????????,????????????????????,?????????????????????,???????,“?????????????????????,?????”

???????????????????????????????,20???90????????????????,???,?????,????????????“??????,???????”??

????????????????????,???????????????,??????????????????????,?????????,???????????????GDP??,??

IFF????????????????????,?????,??,???????????????????,?????,“????????????”

?????????“?????????????????:???????????”??????????,?50?????200????????????????????????????????,??????????????????(??)

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