数据库设计中，概念模型是()。_计算机科学与技术_全学科试题题库

当前学科：计算机科学与技术

题目：未知类型
数据库设计中，概念模型是()。
答案： <查看本题扣1积分>

查看答案

答案不对？请尝试站内搜索

推荐知识点:

农业生产社会化是促进生产力发展必由之路的原因？

S1切换过程，目标基站需要通知核心网进行PathSwitch。（）

25岁初孕妇，孕39周，未经产前检查，诉下肢水肿半月，近3日头痛，今晨出现视物不清及头痛加重，且呕吐2次，查尿蛋白2．5g／24h。为排除慢性肾炎，最有鉴别价值的检测项目是（）

Literacy Volunteer Last summer I went through a training program and became a literacy volunteer （扫盲志愿者）. The training I received， though excellent， did not tell me how it was to work with a real student， however. When I began to discover what other people's lives were like because they could not read， I realized the true importance of reading. My first student Jane was a 44-year-old single mother of three. In the first lesson， I found out she walked two miles to the nearest supermarket twice a week because she didn't know which bus to take. When I told her I would get her a bus schedule， she told me it would not help because she could not read it. She said she also had difficulty once she got to the supermarket because she couldn't always remember what she needed. Since she did not know words， she could not write out a shopping list. Also， she could only recognize items by their labels. As a result， if the product had a different label， she would not recognize it as the product she wanted. As we worked together， learning how to read built Jane's self-confidence， which encouraged her to continue in her studies. She began to make rapid progress and was even able to take the bus to the supermarket. After this successful trip， she reported how self-confident she felt. At the end of the program， she began helping her youngest son， Tony， a shy first grader， with his reading. She sat with him before he went to sleep and together they would read bedtime stories. When his eyes became wide with excitement as she read pride was written all over her face， and she began to see how her own hard work in learning to read paid off. As she described this experience， I was proud of myself， too. I found that helping Jane to build her self-confidence was more rewarding than anything I had ever done before. As a literacy volunteer， I learned a great deal about teaching and helping others. In fact， I may have learned more from the experience than Jane did. I went through training program and became a literacy volunteer.（） My first student Jane was a 44-year-old single mother of three， could read the bus schedule.（） When 1 began to discover what other people's lives were like because they could not read，I realized the true importance of reading.（） Jane could not recognize items by their labels.（） If the product had a different label，she would not recognize it as the product she wanted.（） She could write out a shopping list.（） After her successful trip to the supermarket，Jane reported how self-confident she felt.（） At the end of the program， Jane began helping her youngest son with his reading.（） As Jane described her experience，I was proud of myself，too.（） I once could not read.（）

简述我国对前期物业管理的相关法律规定。

疖和痈的主要致病菌是（）。

银行信贷证明按照固定资产贷款业务流程办理。（）

猫耳洞是指一种与猫耳朵形状相似的（）、（），是一种军事上供单兵或少量士兵作战用的防护工事。

属于补充概算定额“地下连续墙——振动沉模防渗板墙”采用的材料的是（）

摄像机要求强度好，重量最轻，应采用（）作压铸材料。