题目内容

根据给定资料，就如何治理虚假广告提出自己的建议。要求：有针对性，有条理，切实可行，字数300字左右。(20分)

查看答案

搜索结果不匹配？点我反馈

更多问题

&8226;You work for Jenny, a shop which sells up-market clothing. You are asked to find a way to increase the profits of your shop.
&8226;Read the following figure showing the results of a survey of two up-market specialty shops. Point A refers to your shop. Point B refers to Lily Fashion Shop, your main competitor, near your shop.
&8226;Use the figure to write a report recommending ways of improving the quality and pricing of your shop.
&8226;Write 120-140 words

Part A
Write a composition of about 120 words on the topic Credit Cards in three paragraphs. Use the topic sentences given below to develop your composition.
1. Credit cards have become more and more popular since they came into existence.
2. Compared with cash, credit cards really have some advantages.
3. Of course, we still have some problems with credit cards.

创建Customers表时，cid使用INTEGER数据类型，cname使用CHAR(80)数据类型，address使用CHAR(200)数据类型，cardnum使用CHAR(16)数据类型并且要求此列值唯一。请在下列用于创建表Customers的SQL语句空缺处填入正确的内容。

阅读下列某网上订书管理系统的说明和E-R图，根据要求回答问题1～问题3。
[说明]
某网上订书系统的E-R图(已消除了不必要的冗余)如图6-17所示(图中没有标出主码)。图中实体的说明如表6-10所示，相关属性说明如表6-11所示。
一个顾客可以在同一天填写多张购书单，每张购书单上可填写多种图书，每种图书可以订购多本，bid相同的图书在同一张购书单上不能出现多次。
注：为简化起见，不考虑信用卡号码泄漏所带来的安全性等问题。
根据图6-17所示的E-R图中给出的词汇，按照“关系模式名(属性，属性，…)”的格式，将此E-R图转换为4个关系模式，并指出每个关系模式中的主码和外码，其中模式名根据需要取实体名或联系名。