在等差数列{an}中,已知a1+a3+a11=6,那么S9=( ) A.2 B.8; 发布时间:2017-05-02 21:32 │ 来源:www.tikuol.com 题型:选择题 问题: 在等差数列{an}中,已知a1+a3+a11=6,那么S9=( )A.2B.8;C.18D.36
题型:选择题 — _______ do you think of the basketball match?— It's perfect. It's more exciting than _______ match that I have ever watched.A.What; any otherB.How; any otherC.How; any othersD.What; any others 查看答案