[单选题]

《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

参考答案与解析: