[单选题]等差数列2,5,9,…的通项公式为() A 3n-2 B 3n-3 C 3n-1 D 3n-5 [单选题]等差数列2,5,9,…的通项公式为() A 3n-2 B 3n-3 C 3n-1 D 3n-5 发布时间:2024-08-28 15:36:11