?????????
???????
???????
????? ???? ???????? ?????????? ????? ???? ????? ??? ????? ?????????, ??????? ??????????, ???? ?????????? ?? ???? ??? ?????? ?? ??? ??? ??????????? ??? ???????????? ??? ???????????? ??? ??????? ???????????????? ?????????? ???????? ??? ????? ??? ??? ????, ????? ??? ?????????? ????????, ????? ????????, ????? ????????, ?????? ?????????? ??????? ???????????.
?? ??????????? ???? ??? 0.1-0.5% ??? ?? ?????????, ????? ???? ???? ??????? ???? ????-??????? ??? ??? ??????????? ??? ???????????????.
