问题
填空题
在数据库设计中，进行E-R模型向关系模型的转换是______结构设计阶段的任务。
答案
参考答案：逻辑
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在数据库设计中，进行E-R模型向关系模型的转换是______结构设计阶段的任务。
参考答案：逻辑
| 情景对话。 | |
| A: Winter holidays will begin next month. Are you going back to America, Mary? B: No. 1______ A: What are you going to do? B: Mum will take me to Xi'an. 2______ A: Oh, she'll be happy to see you. B: Yes, we haven't seen each other for several yeans. A: 3______ B: She's working in Australia this year. And she worked in France the year before. A: 4______ B: Yes, she has. She likes travelling. so she always changes her work. A: Is she going to work in China? B: Yes, 5______ A: That's great.
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