(https://www.slideshare.net/williamhowell21000)???? ??????????????? ?????? ?? ??????? ? ??????????? ???????? ?????? ?? ?????? ????? ? ?????????????? ????????? ?? ?????????? ??????'? ? ??????????, ???????????? ????? ?????? ??? ????????????? ??????? ????????? ?????? ?????????. ????????? ??????? ????????, ???? ?? ?????? ??????, ?????? ?? ??????? ????? ?????????? ????????? ???????????? ??... https://paxtont852u.qodsblog.com/31377338/