單項選擇題2,1,6,14,40,108,()

A.288
B.296
C.304
D.312


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1.單項選擇題1/3,1,9,243,()

A.19683
B.19785
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2.單項選擇題2,3,5,9,(),33

A.15
B.17
C.18
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3.單項選擇題

()

 

A.
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4.單項選擇題6,3,5,13,2,63,()

A.-36
B.-37
C.-38
D.-39

5.單項選擇題2,5,9,19,37,75,()

A.140
B.142
C.146
D.149