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??? ?????? ??? ??? 9? ? ???????? ?? ???? ??? ??? ??? ???? ??? ‘??? ??’? ????. ??? ??? ??? ?????? ??? ???? ??? ?? ????? ???? ??? ? ???? ???? ??? ?? ??? ???? ???? ?????? ???.
????? ??? ???? ‘??? ??’? ???? ??. ????? ?? ???? ????? ????? ??? ?? ?? ????? ?? ??, ??? ? ??? ???? ???? ‘????????(CSP)’? ???? ??.
????? ?? ???? ??? ? ????? ?? ???? ?? ??? ??? ??? ?? ??.
??BNP??? ????? ‘??? ???’, ‘???’ ?? ??? ? ??? ? ??? ???? ??? ??? ? ?? ???? ?????.
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??? ??? ????? ??? ??? ???? ?? ??????? ???? ??. 2006? ??? ? ??? 1? ? ?? ?? ??? ? 1000? ??? ??? ??? ??? ? 583?? ???? ???? ??? ? ??.