《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正确答案A
《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正确答案A