题型:问答题 简答题 Since 1942, he _____ his hometown.[ ]A. has left B. has moved away fromC. has been away from D. moved away from 查看答案
题型:问答题 简答题 根据岩土工程勘察资料,某一钻孔的土层波速为:0~2.0m,淤泥质黏土①,υs=120m/s;2~25m粗砂②,υs=400m/s;25~26m孤石③,υs=800m/s;26~40m砾砂④,υs=350m/s;40m以下基岩⑤,υs=700m/s,确定场地类别。()A.Ⅰ类 B.Ⅱ类 C.Ⅲ类 D.Ⅳ类 查看答案