A.土的地質(zhì)年代和組成B.土的密實(shí)程度與黏粒含量C.土層埋深和地下水位深度D.地震烈度和地震持續(xù)時(shí)間
A.1/550,1/550B.1/550,1/250C.1/250,1/550D.1/250,1/250
A.1.1B.1.2C.1.3D.1.4