9(5,4,2)10(법원에서동쪽으로천m지점,기준점이다르다,2,라가나다,3,2,72㎞/h.1200m/분.20m/s,5,5:6,1)12(ㄴ.ㄹ,4.8㎝/s)13(1,빨라.느려,20㎝/s,2,0.4m/s,1,1,D)
당신은 어느 그룹입니까?