?? ?????? ???????????????
????:1???????:????????????
2????????????
3??????????
4?????????????
5??????????
??????2?????????????2???????????????????????????? (?????????????? ????)?????(?????????????)????????????????2?????????????????1?,?????
????????????????????,??????2????????????1??,?,?????????????
??,????????????????????????,???????????????,??
??2???????????????????1??????????????,????????????????90%?????????????
2?2??,????????????????,????????(?????) ???????:??