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الملخص

???? ????? ?????? ??? ???? ??? ??????? ?????? ????? ?? ????? ???? ???? ?????? ????? ?? ???? ????? ????? ???????? ??????? ?? ??? ????? ??? ??????? ??????? ?????? ( ??? ???? ??? ?? ????? ??????? ??? ????? ????? (0?05) ??? ????? ????? ???? ???????? ????????? ????? ?????? ???? ????? ????? ??????? ???????? ?????? ?????? ?????? ????? ???? ???????? ??????? ????? ?????? ?????? ????? ???????? ?????????? }????????{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