题目内容
(请给出正确答案)
[单选题]
1/2,1/6,1/12,_____,1/30。
A.1/15
B.1/18
C.1/20
D.1/24
答案
C、1/20
如果结果不匹配,请 联系老师 获取答案
A.1/15
B.1/18
C.1/20
D.1/24
C、1/20
1/2,1/6,1/12,1/20,()
A.1/40
B.61/24
C.1/30
D.3/22
1/2,1/6,1/12,1/20,()
A.1/30
B.1/28
C.1/40
D.1/24
1/2,1/6,1/12,1/20,1/30,()
A.1/42
B.1/40
C.11/42
D.1/50
1/2,1/3,1/6,1/18,1/108,()
A.1/216
B.1/324
C.1/1080
D.1/1944
A.6,1
B.2,1
C.6,0
D.2,0
A.6,1
B.2,1
C.6,0
D.2,0
A.2,1
B.2,0
C.3,1
D.6,1