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已知等比数列{an}公比q=2,其中a2,2a3+1,a5成等差数列,则=A.B.C.D.
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已知等比数列{a
n}公比q=2,其中a
2,2a
3+1,a
5成等差数列,则
=( )
A.
B.
C.
D.
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