• 2022-05-27
    《中国地震动反应谱特征周期区划图》中硬场地按地震动反应谱特征周期划分为()类别区。
    A: 0.35s,0.40s,0.45s
    B: 0.25s,0.30s,0.35s,0.45s
    C: 0.25s,0.30s,0.35s,0.40s,0.45s
    D: 0.30s,0.35s,0.45s
  • 举一反三