??? ??? ?? ??????? ???? ??? ???? ??? ? ??? ‘????’ ??? ????? ??? ??? ?????? ??. ??? ??? ???? ???? ??? ??? ?? ?? ??? ???? ‘????? ?? ???? ???? ??. 8～14? ???? ?????? ??? ??? ?? ???????? ????? ???? ??? ?? ??? ???. 3?3169?? ?? ??? ‘???? ???’ 36.3%, ‘???? ??’ 63.7%??.
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