Gaokao Math Practice Question
10. 设 $\left\{a_{n}\right\}$ 是等比数列, 且 $a_{1}+a_{2}+a_{3}=1, a_{2}+a_{3}+a_{4}=2$, 则 $a_{6}+a_{7}+a_{8}=(\quad)$
- A.12
- B.24
- C.30
- D.32
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