【单选题】采用表结构来表示数据及数据间联系的模型是
【简答题】Listen to conversation 1 and number the sentences in the order you hear them. 1. I'm not sure I want to buy anything at all. 2. Tanya has invited us to the catwalk show this afternoon. 3. So what type...
【单选题】采用表结构来表示数据及数据间联系的模型是()
【简答题】( )模型是数据库系统中最早采用的数据模型,它是通过从属关系结构表示数据间的联系,层次模型是有向“树”结构。
【单选题】A young woman says to another woman: "I don't trust poor people, I know they're jealous and want to steal my things!" What type of prejudice is this woman displaying?
【单选题】下列模型中,采用表结构来表示数据及数据间联系的模型是()。
【单选题】听力原文:M: I would like to book a holiday. W: OK sir. What type of holiday are you interested in? We offer many different kinds to suit all tastes. Q: What’s the relationship between the man and the woma...
A.
Customer and estate agent.
B.
Customer and travel agent.
C.
Customer and shop assistant.