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

2???????????

3?????

4????????????

5???????

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

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

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

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

“??”????????????,??????????“?????????”???????????,???“????????????‘????????????????’??????????????????,??????????????”

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

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

????,“?????”?,???

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

???????????????????,???????????5??,??????,??“????”????????????????????????????,??????,????????????????,???????????(????????????) ????????:?????????????????