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A．該數(shù)列的奇數(shù)項(xiàng)a₁，a₃，a₅，…成等比數(shù)列，偶數(shù)項(xiàng)a₂，a₄，a₆，…成等差數(shù)列

B．該數(shù)列的奇數(shù)項(xiàng)a₁，a₃，a₅，…成等差數(shù)列，偶數(shù)項(xiàng)a₂，a₄，a₆，…成等比數(shù)列

C．該數(shù)列的奇數(shù)項(xiàng)a₁，a₃，a₅，…分別加4后構(gòu)成一個公比為2的等比數(shù)列

D．該數(shù)列的偶數(shù)項(xiàng)a₂，a₄，a₆，…分別加4后構(gòu)成一個公比為2的等比數(shù)列

如果數(shù)列滿足：首項(xiàng)那么下列說法中正確的是

A．該數(shù)列的奇數(shù)項(xiàng)成等比數(shù)列，偶數(shù)項(xiàng)成等差數(shù)列

B．該數(shù)列的奇數(shù)項(xiàng)成等差數(shù)列，偶數(shù)項(xiàng)成等比數(shù)列

C．該數(shù)列的奇數(shù)項(xiàng)分別加4后構(gòu)成一個公比為2的等比數(shù)列

D．該數(shù)列的偶數(shù)項(xiàng)分別加4后構(gòu)成一個公比為2的等比數(shù)列

如果數(shù)列滿足：首項(xiàng)那么下列說法中正確的是

A．該數(shù)列的奇數(shù)項(xiàng)成等比數(shù)列，偶數(shù)項(xiàng)成等差數(shù)列

B．該數(shù)列的奇數(shù)項(xiàng)成等差數(shù)列，偶數(shù)項(xiàng)成等比數(shù)列

C．該數(shù)列的奇數(shù)項(xiàng)分別加4后構(gòu)成一個公比為2的等比數(shù)列

D．該數(shù)列的偶數(shù)項(xiàng)分別加4后構(gòu)成一個公比為2的等比數(shù)列