A.埋深小于4.5米叫淺基礎 B.埋深小于等于4米叫淺基礎 C.埋深大于等于3米的叫做深基礎 D.埋深小于5米的叫做淺基礎
A.400mm B.350mm C.300mm D.250mm
A.0.10~0.20m B.0.20~0.30m C.0.30~0.50m D.0.50~1.00m