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?? 19? ?? ???? ??‘????’? 20~40? ???? ??? 650?? ???? ‘??? ???’? ?? ?? ??? ??? ??? ????.
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A?? ??? ????? ‘????? ???? ???? ??’(35.3%)??? ? ??? ????. ?? AB?(29%), B?(21.6%) O?(13.8%) ??? ????.
? ‘??? ???’?? ????? ? ???? ???? O?(40%)? 1?? ???? ?? A?(30.9%), B?(15.5%), AB?(13.5%) ????.
??? ??? ?????? AB?(43.5%)? ???? ???? ??? ???? ?? ?? ???? ???, ??? ??? ????? B?(33.6%), ???? O?(13.6%), ????? A?(9%)? ? ?? ???.
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