题目内容
(请给出正确答案)
[主观题]
1/2,1/6,1/12,1/20,1/30,()A.1/40B.1/37C.1/31D.1/42
1/2,1/6,1/12,1/20,1/30,()
A.1/40
B.1/37
C.1/31
D.1/42
答案
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1/2,1/6,1/12,1/20,1/30,()
A.1/40
B.1/37
C.1/31
D.1/42
第1题
1/2,1/6,1/12,1/20,()
A.1/40
B.61/24
C.1/30
D.3/22
第3题
1/2,1/6,1/12,1/20,()
A.1/30
B.1/28
C.1/40
D.1/24
第6题
1/2,1/3,1/6,1/18,()
A.1/108
B.1/36
C.1/54
D.1/72
第8题
1/2,1/3,1/6,1/18,1/108,()
A.1/216
B.1/324
C.1/1080
D.1/1944