MMDB(Molecular Modeling Database)

homology modeling

Box Modeling建模的缺点是（）。

A:过于深奥，初学者难以涉猎 B:速度不太理想 C:3ds max中NURBS还不太完善 D:以上说法都正确

在计算机图形关于Modeling的物体的描述中，下列是正确的结论有（）

A:一根直线是物体 B:一个空间的点是物体 C:一个立方体是物体 D:三维欧氏空间点的集合是物体

The Unified Modeling Language is a standard graphical language for modeling object-oriented software-（）can show the behavior of systems in terms of how objects interact with each other.

A:Class diagram B:Component diagram C:Sequence diagram D:Use case diagram

The Unified Modeling Language is a standard graphical language for modeling object-oriented software.______ can show the behavior of systems in terms of how objects interact with each other.

A:Class diagram B:Component diagram C:Sequence diagram D:Use case diagram

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

prior to the UML, there was no clear leading（）language. Users had to choose from among many similar modeling languages with minor differences in overall（）power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of（）discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. ?Users longed for the industry to adopt one,or a very few, broadly supported modeling languages suitable for（）usage.
Some vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different（）modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.

Users had to choose from among many similar modeling languages with minor differences in overall（）power.

A:control B:expressive C:conductive D:interactive

prior to the UML, there was no clear leading（）language. Users had to choose from among many similar modeling languages with minor differences in overall（）power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of（）discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. ?Users longed for the industry to adopt one,or a very few, broadly supported modeling languages suitable for（）usage.
Some vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different（）modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.

This lack of（）discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling.

A:agreement B:understanding C:characteristic D:diversity

prior to the UML, there was no clear leading（）language. Users had to choose from among many similar modeling languages with minor differences in overall（）power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of（）discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. ?Users longed for the industry to adopt one,or a very few, broadly supported modeling languages suitable for（）usage.
Some vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different（）modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.

In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different（）modeling tools.

A:internal B:external C:front-end D:back-end