Spirit to Serve is about serving the associates, the guest, and the community which will affect the success of everyone and hospitality business.
A.
正确
B.
错误
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举一反三
【简答题】在等差数列{a n },等比数列{b n }中,已知a 1 =b 1 =1,a 2 =b 2 ≠1,a 8 =b 3 , (1)求数列{a n }的公差d和数列{b n }的公比q; (2)是否存在常数x,y,使得对一切n,都有a n =log x b n +y成立?若存在,求出x和y;若不存在,说明理由.