12.무한급*(p138~141)1,5,주3,1,4,5,3,주640 *(p142~146)3,4,5,주18,4,2,주3,3,4 *(p147)주32,2,2 *(p148)2,4,2,1,4 *(149~150)2,5,2,3,3,2,3,4 *(p151)2,4,4
당신은 어느 그룹입니까?