Woman: I need to buy a wedding gift for Jane and Desler. Man: Should we stop at the shopping center? Woman: ______. The wedding's not until next week, but I won't have time later to get them anything.
【简答题】Chinese Dinner Table Of course, the main difference on the Chinese dinner table is chopsticks instead of knife and fork, but that’s only superficial. Besides, in decent restaurants, you can always ask...
【简答题】若{a n }是公差d≠0的等差数列,通项为a n ,{b n }是公比q≠1的等比数列,已知a 1 =b 1 =1,且a 2 =b 2 ,a 6 =b 3 . (1)求d和q. (2)是否存在常数a,b,使对一切n∈N * 都有a n =log a b n +b成立,若存在求之,若不存在说明理由.