顾客对美发业所（）的满意程度，决定美发厅的生存和发展，而价格是顾客考虑的重要方面。
A.提供物料
B.提供环境
C.提供设备
D.提供服务
参考答案：D
根据提示完成对话，注意添加适当助词。
Tony: Hi, Dad!
Dad: Hi, Tony. What (1)_________ (you／do)?
Tony: We (2)_________ (visit) the Forbidden City. Lingling and Betty (3)_________ (write) postcards.
Dad: What (4)_________ (Damming／do)?
Tony: He (5)_________ (take) photos. There are lots of people here. They (6)_________ (enjoy) the sun.
Some (7)_________ (look) at the buildings and some (8)_________ (listen) to the guide.
Dad: (9)_________ (you／have) a good time?
Tony: Yes, we (10)_________ (have) a great time, Dad! See you later.
打开油气层前的井场动火作业是属于几级作业许可审批危险作业项目？
