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1,2,5,26()A.47B.677C.52D.13017,24,34,48,68,96,136()A.156B.169C.192D.1963,7,47,2207()A.4414B.6621C.8828D.4870847

题目详情
1,2,5,26( )
A.47 B.677 C.52 D.130
17,24,34,48,68,96,136( )
A.156 B.169 C.192 D.196
3,7,47,2207( )
A.4414 B.6621 C.8828 D.4870847
▼优质解答
答案和解析
1的平方加1等于2,2的平方加1等于5,5的平方加1等于26,26的平方加1等于677
隔项等比数列,此题应选C、192
3,(3*3-2=)7,(7*7-2=)47,(47*47-2=)2207,2207*2207-2=(4870847)