【单选题】Lodger: I'm terribly sorry that I broke your precious vase. I'll pay for it. Landlady: ______.
【单选题】在数据库技术中,独立于计算机系统的模型是
【单选题】听力原文:Would you prefer to pay your billin installments or a yearly basis? (A) I'll pay it all right away. (B) You should install the program first. (C) The bill is overdue. (39)
【单选题】在数据库技术中,独立于计算机系统的模型是