职教组卷基于海量职教高考试题库建立的在线组卷及学习系统
职教组卷
  • 题型:选择题 题类:月考试卷 难易度:较易

    设数列\(\{a_{n}\}\)是等差数列,\(a_{2}=-6\),\(a_{8}=6\),\(S_{n}\)是数列\(\{a_{n}\}\)的前\(n\)项和,则\((\quad)\)
    A. \(S_{4}< S_{5}\) B. \(S_{4}=S_{5}\) C. \(S_{6}< S_{5}\) D. \(S_{6}=S_{5}\)
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