문제 3OX형하늘을 닮은 우리 악기힌트ㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹㄹ
문제 4OX형흙은 쓰임이 많은 재료다힌트!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!