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【单选题】
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.
A.
distract
B.
differ
C.
descend
D.
derive
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举一反三
【单选题】数据库在计算机中是以______形式存在的。
A.
目录
B.
文件夹
C.
文件
D.
记录
【多选题】蒙太奇的作用有
A.
画面构成
B.
创造时空
C.
创造节奏
D.
符合匹配原则
【多选题】蒙太奇的作用有:
A.
技巧作用
B.
创造时空的作用
C.
构成作用
D.
声画结合的作用
【单选题】以三级模式为框架形成的三种数据库中,真实存在于计算机外存的数据库是( )。
A.
概念数据库
B.
用户数据库
C.
物理数据库
D.
逻辑数据库
【单选题】以三级模式为框架形成的3种数据库中,真实存在于计算机外存的数据库是( )。
A.
概念数据库
B.
用户数据库
C.
物理数据库
D.
逻辑数据库
【多选题】在HDFS中,名称节点(NameNode)负责管理分布式文件系统的命名空间(Namespace),保存了两个核心的数据结构,即 和
A.
FsImage
B.
EditLog
【多选题】平行蒙太奇的作用是
A.
节省篇幅
B.
扩大信息量的摄取
C.
增强影片的节奏感
D.
用冷静的、客观的眼光看待片中人物及其生活
【多选题】交叉蒙太奇的作用
A.
制造悬念
B.
渲染气氛
C.
加强冲突
D.
强调逻辑
【多选题】蒙太奇的作用有( )
A.
创造时空的作用
B.
音画结合的作用
C.
能产生库里肖夫效应
D.
展现电影的顺序时间
【简答题】数据库在计算机中是以()形式存在的。
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