[判断题]Consumer-to-consumer electronic commerce occurs when a person sells an item to another person through a Web auction site.( )

[简答题]ELECTRONIC COMMERCE

[名词解释]Electronic Commerce

[单项选择]The five general electronic commerce categories are business-to-consumer, business-to-business, business processes, consumer-to-______, and business-to-government.
A. consumer
B. government
C. business
D. customers

[判断题]Electronic commerce is much broader and encompasses many more business activities than just Web shopping.( )

[填空题]

How long had business-centered electronic commerce developed

[判断题]The laws dealing with electronic commerce are clear and up-to-date.( )

[单项选择]Electronic commerce may be defined as the entire set of processes that support ______ activities on anetwork and involve information analysis．
A. post
B. exchange
C. transfers
D. commercial

[单项选择]An transport industry is an area of commerce in which aircraft are employed to carry passengers, freight and mail.（）
A. 空中运输业是一种以雇佣飞机来输送乘客，货物和信件的一种商业贸易。
B. 空运业是商业的一个领域，它就是用飞机运送乘客，货物及邮件。
C. 空运业务是贸易领域的一项业务，它可以用飞机来载人，运货物和邮件。
D. 航空运输业是一个商业领域，在这个领域中用飞机运送旅客，货物和邮件。

[填空题]REM occurs at the third and fourth stage during which we experience the deepest sleep.

[填空题]mobile commerce

[单项选择]
The term e-commerce refers to all commercial transactions conducted over the Internet, including transactions by consumers and business-to-business transactions. Conceptually, e-commerce does not (51) from well-known commercial offerings such as banking by phone, "mail order" catalogs, or sending a purchase order to supplier (52) fax. E-commerce follows the same model (53) in other business transactions; the difference (54) in the details.
To a consumer, the most visible form of e-commerce consists (55) online ordering. A customer begins with a catalog of possible items, (56) an item, arranges a form of payment, and (57) an order. Instead of a physical catalog, e-commerce arranges for catalogs to be (58) on the Internet. Instead of sending an order on paper or by telephone, e-commerce arranges for orders to be sent (59) a computer network. Fin
A. beyond
B. beside
C. over
D. up