搜题请搜索小程序“爱下问搜题”
问题 解答题

已知集合A={6，8，10，12}，B={1，6，8}，

（1）求A∪B；

（2）写出集合A∩B的所有子集

答案

解：（1）A∪B={6，8，10，12}∪={1，6，8}={1，6，8，10，12}；

（2）因为A∩B={6，8}；所以集合A∩B的所有子集为 ，{6}，{8}，{6，8}．

单项选择题 A1型题

下面哪项不是绒癌化疗的用药原则（）

A.Ⅳ期或耐药病例可用EMA-CO方案

B.Ⅱ期－Ⅲ期宜联合用药

C.Ⅰ期单药治疗

D.联合用药时疗程间隔为2周

E.联合用药各药宜较单药减量
查看答案
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. (101) 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 (102) . A diagram graphically represents things, and the relationships between these things. These (103) 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. (104) are used to capture the physical organization of the things in your system, i. e. , how one object relates to another. (105) 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.

A．Programming

B．Analyzing

C．Designing

D．Modeling
查看答案