题目内容
(请给出正确答案)
[单选题]
2,1/3,4,1/9,8,1/81,(),()。
A.14 1/6561
B.16 1/6561
C.32 1/6561
D.64 1/6561
答案
查看答案
A.14 1/6561
B.16 1/6561
C.32 1/6561
D.64 1/6561
第1题
2,1/3,4,1/9,8,1/81,(),()
A.14,1/6561
B.16,1/6561
C.32,1/6561
D.64,1/6561
第7题
请用∈,,填下列空格:
{a}______{{a},3,4,1};
{a,4,{3}}______{2,a,{3},4};
{{a}}______{{a},3,4,1}.