题型:问答题 简答题 The Internet connection for the entire area _________ when there was a sudden power cut yesterday.[ ]A. lost B. was lost C. had lost D. had been lost 查看答案
题型:问答题 简答题 招标人与中标人签订合同协议书,一般经过的步骤包括( )。A.中标人按招标文件要求向招标人提交履约保证金B.中标人确定后15日内按有关规定将项目招标投标情况书面报告提交招标投标行政监督部门C.双方签订合同协议书,向有关行政监督部门备案、核准或登记D.投标人退还招标文件约定的设计图纸等资料E.招标人退还投标保证金及利息 查看答案