1, 1,2, 3, 8, ( ), 21,34A.10;B.13;C.12;D.16

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问题 1, 1,2, 3, 8, ( ), 21,34

选项 A.10;B.13;C.12;D.16

答案C

解析选C,(1,1)(2,3)(8,12)(21,34);后项减前项:0,1,4,13,1=0×3+1;4=1×3+1;13=4×3+1
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