已知某場(chǎng)地的鉆孔土層資料如下表: 按《建筑抗震設(shè)計(jì)規(guī)范》(GB50011-2010):
A.7.2m B.10.4m C.15m D.20m
A.168m/s B.197m/s C.236m/s D.309m/s