第9题: [单项选择]某12层住宅楼在拟定结构吊装方案时,应选择的起重机械为( )。 A. 履带式起重机 B. 塔式起重机 C. 自升式塔式起重机 D. 桅杆起重机 参考答案:C 答案解析:[解析] 在拟定结构吊装方案时,可选择的机械有:履带式起重机、塔式起重机和自升式塔式起重机等。履带式起重机适用于安装4层以下结构,塔式起重机适用于 4~10层结构,自升式塔式起重机适用于10层以上结构
第16题: [单项选择]A. She got hurt in an accident yesterday. B. She has to go to see a doctor. C. She is black and blue all over. D. She stayed away from work for a few days. 参考答案:A 答案解析:[听力原文] W: My hand still hurts from the fall on the ice yesterday. I wonder if 1 broke something.<