已知数列{a n }是公差为正的等差数列,其前n项和为S n ,点(n,S n )在抛物线 y= 3 2 x 2 + 1 2 x 上;各项正数的等比数列{b n }满足 b 1 b 3 = 1 16 , b 5 = 1 32 . (1)求数列{a n },{b n }的通项公式; (2)记C n =a n b n ,求数列{C n }的前n项和T n .
【简答题】A. It must be something unusual . B. It's a business appointment . C . It's a hot debate on their life . D . It's a private talk . C. It's a hot debate on their life . D. It's a private talk .