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???? ??? SM??????(?? ‘SM’)? ????? ???.
SM? ??? ?? ??? ‘?????’? ???? ???? ??? ‘????????’? ??? ??, ??, ?? ?? ????? ???.
SM? “??? ???? ?? ??? ?? ???? ? ??, ?? ??? ????? ?? ???? ??? ??? ???? ???? ??? ????, ??? ?? ????, ??? ??? ???? ‘?? ?????’ ??? ??? ??”??? ???.