??? ????? ????? ??????? ???? ??????? ???? ???? ????????? – ??? ????? ???? ????? ?? ?????? ???? ???? ????.*???, ???? ????? ????? ?????? ??????, ?? ???? ?????? ??? ???? ?? ??? ????? ??????? ?? ????, ?- ?' ??? ?'.But, compared with other industries the place “experts” is likely to be regulated by tests, certifications as well as a governing syst