????:1???????????:????v

2??????q?

3?????800

4???400??

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

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

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

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

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

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

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

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

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