?? ?? MC ???(42)? ??? ????? ????? ??. ??? ???????? ????21(www.campus21.co.kr)? ?? “???? ????? ??? 3??? 3?? ???? ???? ??? ???? ??”? ???.
???? ???21? ?? ??? ??? ???? ???? ??? ??? ??? ?? ???? ????, ??? ??? ??? ?? ????. ?? ???? ??? ??? 70%? ????, ??? 30%? ? ??? ?????? ?? ??? ????.
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