E-commerce relies on modern network technology.

A、Mall shopping

B、Online auctions

C、Payment gateways

D、Online ticketing

在考生文件夹下，打开Ecommerce数据库，完成如下操作：

1．首先打开Ecommerce数据库，然后为表Customer增加一个字段，字段名为email、类型为字符、宽度为20。

2．为Customer表的“性别”字段定义有效性规则，规则表达式为：性别$"男女"，出错提示信息为“性别必须是男或女”，默认值为“女”。

3．通过“会员号”字段建立客户表Customer和订单表OrderItem之间的永久联系；通过“商品号”字段建立商品表Article和订单表OrderItem之间的永久联系。

4．为以上建立的联系设置参照完整性约束：更新规则为“级联”；删除规则为“限制”；插入规则为“限制”。

Regular ecommerce merchant accounts are expensive. But ecommerce 【S1】______

service providers promote "free merchant accounts" as alternatives

to help for online business owners to reduce the cost of handling 【S2】______

online transactions. You can start with selling your products on the 【S3】______

Internet without the hefty upfront cost of a regular ecommerce

merchant account. Though free merchant accounts are, of course, 【S4】______

not completely free. There're several options to conduct in online 【S5】______

transactions cost-effectively.

3rd Party Credit Card Processors You can handle online credit

card for processing without a merchant account. 3rd party credit card 【S6】______

processors are companies that accept credit card orders on behalf

of other online businesses. They process the transactions and

send you a monthly payment. If you don't sell, you don't pay. However,

the credit card processors charge you by a few extra percentage points 【S7】______

on transactions in comparison to having your own ecommerce 【S8】______

merchant account.

Discount Merchant Accounts Merchant banks may waive setup fee

and even monthly fee under certain conditions while charging a 【S9】______

higher transaction fee. You do have your own merchant account

in comparing to the option of using a third part credit card processor. 【S10】______

If you don't process, you don't pay.

Merchant Account Bandied with Ecommerce Hosting

Ecommerce hosting companies offer merchant account as part of

hosting package. But they will waive your setup fee and monthly fee if 【S11】______

you sign up with their ecommerce hosting package. They charge by a 【S12】______

few percentage points on transactions.

【S1】______

ne letter(A-H)next to the number of the piece． ·YOU will hear the five pieces twice． 13__________ 14__________ 15__________ 16__________ 17__________ A．in the office B．in the post office C．in the parking area D．in the fitness center E．in the parking F．in the Ecommerce G．in the supermarket H．in the class 13.___________

在考生文件夹下，打开Ecommerce数据库，完成如下操作： 1．首先打开Ecommerce数据库，然后为表Customer增加一个字段，字段名为email、类型为字符、宽度为20。 2．为Customer表的“性别”字段定义有效性规则，规则表达式为：性别$’男女’，出错提示信息为“性别必须是男或女”，默认值为“女”。 3．通过“会员号”字段建立客户表Customer和订单表OrderItem之间的永久联系；通过“商品号”字段建立商品表Article和订单表OrderItem之间的永久联系。 4．为以上建立的联系设置参照完整性约束：更新规则为“级联”；删除规则为“限制”；插入规则为“限制”。

A.Advertising

B.Communication

C.Media

D.Intermediary

The Internet barter system relies heavily on ______.

A．the size of barter sites

B．the use of virtual currency

C．the quality of goods or services

D．the location of trading companies

What is implied about LYCOS PHONE？

A．It is difficult to use.

B．It relies on network carriers.

C．It has an extended warranty.

D．It has limited customer support.