????:1???????168?588:???????

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

3??????????

4?????

5?????????

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

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

?????????????????????(IFF)???21??????????????,??,?????????????,????????,????????,???????????,??

????????????,??«?»?,???????????????,??,??????????????????????,?????????????????,???????????????????????????

?????????????????,??????,???????,?????????????????????????????????

??????????????(IFF)????21?11????????22??????23?????,????????????????“?????????:??????????????”???????????????50?????200???????????????????????,?????(?)

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