1,2,2,5,4,11,8,( )
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[单选题]
1,2,2,5,4,11,8,( )
A . 18
B . 21
C . 23
D . 24
参考答案:
[单选题]
1,2,2,5,4,11,8,( )
A . 18
B . 21
C . 23
D . 24
参考答案: