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问题 选择题

2008年北京奥运会火炬接力传递距离约为137 000千米，将137 000用科学记数法表示为（　　）

A．13.7×104

B．137×103

C．1.37×105

D．0.137×106

答案

137 000=1.37×105．故选C．

单项选择题

It should go without saying that the focus of UML is modeling. However, what that means, exactly, can be an open-ended question. (71) is a means to capture ideas, relationships, decisions, and requirements in a well-defined notation that can be applied to many different domains. Modeling not only means different things to different people, but also it can use different pieces of UML depending on what you are trying to convey. In general, a UML model is made up of one or more (72) . A. diagram graphically represents things, and the relationships between these things. These (73) can be representations of real-world objects, pure software constructs, or a description of the behavior of some other objects. It is common for an individual thing to show up on multiple diagrams; each diagram represents a particular interest, or view, of the thing being modeleD. UML 2.0 divides diagrams into two categories: structural diagrams and behavioral diagrams. (74) are used to capture the physical organization of the things in your system, i.e., how one object relates to another. (75) focus on the behavior of elements in a system. For example, you can use behavioral diagrams to capture requirements, operations, and internal state changes for elements.

（71）处填（）。

A. Programming

B. Analyzing

C. Designing

D. Modeling
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多项选择题

关于意志减弱的说法，正确的是（）

A.是指意志活动增多

B.是指遇事犹豫不决反复考虑

C.常与情感淡漠或情绪低落有关

D.常见于抑郁症

E.慢性精神分裂症病人常见
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