注意:此部分试题请在答题卡2上作答。
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 __67__ from well-known commercial offerings such as banking by phone, "mail order" catalogs, or sending a purchase order to supplier __68__ fax.E-commerce follows the same model __69__ in other business transactions; the difference __70__ in the details.
To a consumer, the most visible form. of e-commerce consists __71__ online ordering. A customer begins with a catalog of possible items, __72__ an item, arranges a form. of payment, and __73__ an order. Instead of a physical catalog, e-commerce arranges for catalogs to be __74__ on the Internet. Instead of sending an order on paper or by telephone, e-commerce arranges for orders to be sent __75__ a computer network. Finally, instead of sending a paper representation of payment such as a check, e-commerce __76__ one to send payment information electronically.
In the decade __77__ 1993, e-commerce grew from an __78__ novelty (新奇事物) to a mainstream business influence. In 1993, few __79__ had a web page, and __80__ a handful allowed one to order products or services online. Ten years __81__, both large and small businesses had web pages, and most __82__ users with the opportunity to place an order. __83__, many banks added online access, __84__ online banking and bill paying became __85__. More importantly, the value of goods and services __86__ over the Internet grew dramatically after 1997.
67.
A) distract
B) differ
C) descend
D) derive
第2题
血吸虫虫卵肉芽肿形成的机制主要是T细胞介异的几型变态反应 ()
A、Ⅰ型变态反应
B、Ⅱ型变态反应
C、Ⅲ型变态反应
D、Ⅳ型变态反应
E、都可以
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