单项选择题
A.Ω={1,4,9,16,25,36} B.Ω= C.Ω={1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,25,30,36} D.Ω={1,2,3,4,5,6}
A.3/5 B.1/6 C.1/2 D.3/10