数据2.4,2.7,2.4,2.5,3.1,1.2,2.9,3.1,2.8的中位

题型:填空题

问题:

数据2.4,2.7,2.4,2.5,3.1,1.2,2.9,3.1,2.8的中位数是(  ),平均数约是(  )。

考点:统计(平均数)统计(中位数)
题型:填空题

UML称为统一的建模语言,它把Booch、Rumbaugh和Jacobson等各自独立的OOA和 OOD方法中最优秀的特色组合成一个统一的方法。UML允许软件工程师使用由一组语法的语义的实用规则所支配的符号来表示分析模型。

在UML中用5种不同的视图来表示一个系统,这些视图从不同的侧面描述系统。每一个视图由一组图形来定义。这些视图概述如下:

(8) 用使用实例(use case)来建立模型,并用它来描述来自终端用户方面的可用的场景。

(9) 对静态结构(类、对象和关系)模型化。

(10) 描述了在用户模型视图和结构模型视图中所描述的各种结构元素之间的交互和协作。

(11) 将系统的结构和行为表达成为易于转换为实现的方式。

(12) 示系统实现环境的结构和行为。

(9)处填()。

A.环境模型视图

B.行为模型视图

C.用户模型视图

D.结构模型视图

题型:填空题

What will you do if you have six million dollars? Different people give different answers.

David  I will buy an island if I have six million dollars. Then I will be the king of the island. I will invite my friends to my island and we’ll have a good time there.

Cathy  If I get six million dollars, I want to start my own business and I will do a lot of things for my family. For me, nothing is more important than my family. I will buy a new house for my parents and take them to travel around the world.

Julie   If I have six million dollars, I will put five million in the bank and spend one million. I will visit Sydney, Toronto, Moscow and other interesting cities. I want to try different kinds of delicious food, and build a house with a swimming pool.

Victor  If I have six million dollars, I will use the money to do everything I like. I will use two million to open my own shop. And I will give another four million to schools and charities. I would like to help students in poor areas to get good education. I want everyone to live a happy life.

小题1:David will invite his friends to ________.

A.his new house

B.his island

C.his country

D.his factory小题2: _________ will take his (her) parents to travel around the world.

A.Victor

B.Julie

C.David

D.Cathy小题3:Julie will spend _________ million dollars traveling and doing other thing.

A.one

B.two

C.three

D.four小题4:Victor will spend two million dollars _________.

A.enjoying delicious food

B.helping poor students

C.opening a shop

D.building a house小题5:Which of the following is NOT true according to this passage?

A.Victor hopes everyone can live a happy life.

B.Julie doesn’t like traveling.

C.Cathy loves her family very much.

D.David gets on well with his friends.

题型:填空题

噬菌体抗体库技术利用λ噬菌体载体表达的是

A.Fc

B.Fab

C.胸腺嘧啶核苷

D.CD分子

E.V-D-J

题型:填空题

简述我国民族商业的两个文化特点?

题型:填空题

电线电缆的规格都以()表示。

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