第4题: [多项选择]门式钢管脚手架的搭设顺序中正确的为() A. 铺设垫木(板)一安放底座一自一端起立门架并随即安装交叉支撑(底步架还需安装扫地杆、封口杆)一安装水平架(或脚手板) B. 立杆一横向水平杆一纵向水平杆一连墙杆一剪刀撑 C. 立杆一纵向水平杆一横向水平杆一剪刀撑一连墙杆 D. 按规定位置安装剪刀撑一安装顶部栏杆一挂立杆安全网 E. 安装钢梯一安装水平加固杆一设置连墙杆 参考答案:A, D, E
第20题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. She met someone who could pay the bill. B. She billed her new roommate for the suit. C. She hasn’t found a suitable roommate yet. D. She’s looking for someone who can lend her money. 参考答案:C 答案解析:[听力原文] M: Have you found a roommate to share your apartment Your place is so big that it’s suita