已知等比数列\(\{a_{n}\}\)是递增数列，\(S_{n}\)是\(\{a_{n}\}\)的前\(n\)项和\(.\)若\(a_{1}+a_{3}=5\)，\(a_{1}a_{3}=4\)，则\(S

已知等比数列\(\{a_{n}\}\)是递增数列，\(S_{n}\)是\(\{a_{n}\}\)的前\(n\)项和\(.\)若\(a_{1}+a_{3}=5\)，\(a_{1}a_{3}=4\)，则\(S_{6}=(\)　　\()\)

A．\(31\)

B．\(32\)

C．\(63\)

D．\(64\)

【考点】等比数列的求和

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难度：易

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