A. he had a hard time packing the suitcases B. he had gone to bed late the night before C. he forgot the time to put his luggage out D. his suitcases were stolen 参考答案:B 答案解析:[听力原文]5-7 M: What in heaven's name happened to my baggage W: Are you with Mr. Grey's party 第16题:[多选题]工作负责人工作前,应对工作班成员进行(____)交底和危险点告知,并确认每个工作班成员都已签名。 A. 工作任务 B. 安全措施 C. 技术措施 D. 组织措施 参考答案:ABC