The prevailing distributed computing model of the current era is called client/servar computing.(现在主流的分布式计算是客户/服务器计算模式) A（71）is a solution in which the presentation,presentation logic,application logic,data manipulation and data layers are distributed between client PCs and one or more servers.(客户端/服务器系统是一种解决方案，其中表示、表示逻辑、应用程序逻辑、数据操作和数据层分布在客户端PC和一个或多个服务器之间) A (72) is a personal computer that does not have to be very powerful in spans of processor speed and memory because it only presents the interface to the user.（瘦客户端是一种个人计算机，它不必在处理器速度和内存方面非常强大，因为它只向用户提供界面。） A（73）is a personal computer,notebook computer,or workstation that is typically more powerful in spans of processor speed,memory,and storage capacity. (胖客户端是指个人电脑、笔记本电脑或工作站，通常在处理器速度、内存和存储容量方面更强大) A（74）hosts one or more shared database but also executes all database commands and services for information systems.(数据库服务器承载一个或多个共享数据库，但也执行信息系统的所有数据库命令和服务) A (n)（75）hosts Internet or intranet web sites,it communicates with clients by returning to them documents and data.

(web服务器通过互联网或者内部网络与客户机进行通信，返回给客户端文件和数据)

A.Client/Server system  B.Client-side

C.Server-sider       D.Database

》

A.Server-sider

B.Browser

C.Fat client

D.Thin client

》

A.Cloud platform    B.Cluster system

C.Fat client          D.Thin client

》

A.Transaction server B.Database server

C.Application server  D.Message server

》

A.Database server

B.Message server

C.Web server

D.Application server

解答：答案选择A｜D｜C｜B｜C。

distributed computing：分布式计算

prevailing ：盛行;流行;