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问题 填空题

如图是一台投影仪的示意图，其中A是______________，它的作用是改变光的传播方向；B是_______________，它在投影仪上所起的作用是_____________________________。

答案

平面镜，凸透镜，成一个倒立、放大的实像

单项选择题

For nearly ten years,the Unified Modeling Language (UML) has been the industry standard for visualizing,specifying,constructing,and documenting the(1)of a software-intensive system.As the(2)standard modeling language,the UML facilitates communication and reduces confusion among project(3).The recent standardization of UML 2.0 has further extended the language's scope and viability.Its inherent expressiveness allows users to(4)everything from enterprise information systems and distributed Web-based applications to real-time embedded systems. 　　

The UML is not limited to modeling software.In fact,it is expressive enough to model (5)systems,such as workflow in the legal system,the structure and behavior of a patient healthcare system,software engineering in aircraft combat systems,and the design of hardware. 　　

To understand the UML,you need to form a conceptual model of the language,and this requires learning three major elements:the UML's basic building blocks,the rules that dictate how those building blocks may be put together,and some common mechanisms that apply throughout the UML.

空白（3）处应选择（）

A.investors

B.developers

C.designers

D.stakeholders
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单项选择题

FIDIC的地区成员分会有( )。

A．欧洲成员协会
B．非洲成员协会
C．美洲成员协会
D．亚洲成员协会
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