先张法预制梁在混凝土浇筑完( ),将胶囊气抽走,洗净灰浆以备再用。A.2~4h B 发布时间:2017-06-06 00:58 │ 来源:www.tikuol.com 题型:单项选择题 问题: 先张法预制梁在混凝土浇筑完( ),将胶囊气抽走,洗净灰浆以备再用。A.2~4hB.4~6hC.6~8hD.8~10h
题型:单项选择题 —You look so young. Haven’t you graduated from your university?—Yes, I________in the English Department of Shandong University for four years.A.studiedB.studyC.had studiedD.was studying 查看答案