题型:选择题 Only when _____ to explain ____ the reason for this. [ ]A. did he start; she realized B. he started; did she realizeC. did he start; she had realized D. he started; had she realized 查看答案
题型:单项选择题 建设工程设计合同履行时,( )是设计单位的义务。A.确定设计的范围和深度B.配合施工,进行设计交底C.设计人员进入施工现场时,提供必要的工作和生活条件D.负责向有关部门办理设计阶段设计文件的审批工作 查看答案