问题 判断题

集中式发电将成为能源供应的重要组成部分。预计2050年,全球集中式发电量达到11万亿千瓦·时,占总发电量的15%。

答案

参考答案:

阅读理解

阅读理解。

     You are enjoying the beautiful scenery in a quiet place, but suddenly the peace and quiet is interrupted

(打断) by the noisy sound of a cellphone (手机)! Cellphones are everywhere, and some people don't know

what the limits of cellphone use are.

     For me, it's just a matter of education, good manners, and common sense. If I go to a beautiful place,

it is because I want to enjoy nature. I can do it, but without bothering (打扰) other people.

     Nowadays, that's the biggest problem. People disturb other people, first with the ringing of their

cellphones and then with their conversations because they usually speak very loudly. Not everybody in a

public place should have to listen to private conversations (私人谈话). Even more annoying, you hear just

one part of the conversation.

     People need to learn how to use cellphones correctly. If there is an emergency (紧急情况), cellphones

are acceptable, but remember that just a few years ago few people had cellphones and the whole society

survived!

     But again, not everybody wants to listen to other people's private conversations. It's like smoking. People

don't want to be bothered by smokers. Our society has to learn to respect other people. 

     Sometimes when you are talking to someone, that person interrupts the conversation because of a

cellphone call, without saying "I'm sorry." That is bad manners. They don't know how to respect other people.

It's just common sense! But our society is sometimes so "common senseless!" So, we have to write some

rules to prohibit (禁止) cellphone use in some places.

1. What could be the best title for the passage? [ ]

A. Cellphone Manners Are a Must

B. How to Use Cellphones

C. Don't Disturb Others

D. The Popularity (流行) of Cellphones

2. According to the author, what is the biggest problem nowadays? [ ]

A. People are disturbed by those who use cellphones.

B. People can't hear the other part of the conversation.

C. Private conversations are carried out on cellphone.

D. Not everyone uses a cellphone in public places.

3. By saying "People don't want to be bothered by smokers" (Para. 5), the author really means _____. [ ]

A. smoking also does harm to other people's health

B. people don't want to listen to others talk

C. people don't want to be bothered by cellphone talkers

D. some people don't want others to smoke

4. Which of the following is NOT true according to the passage? [ ]

A. If we interrupt the conversation with a cellphone call, we should say sorry.

B. Some of the cellphone users don't have good manners.

C. Before using cellphones, we must know how to respect others.

D. People who use cellphones are not interested in beautiful scenery at all.

问答题

[说明]


随着计算机应用的不断普及,某集团公司先后建立了生产、销售、财务和人事管理等应用系统,并积累了大量的数据。面对日益激烈的市场竞争,公司领导希望建立一个分析环境,对积累的数据进行再加工,以支持高层决策。
公司技术部门的王总工程师提出建立一个数据仓库系统。他认为数据仓库能够将企业内部分散的、跨平台的数据重新组织与加工,建立数据仓库的最终目标是建立一个全面、完善的信息应用平台,利用该信息平台,进行数据分析和数据挖掘,支持公司高层的决策分析。
经过讨论,大家认为目前建立数据仓库需要完成的基础工作如下。
(1) 明确数据仓库的目的,了解公司的业务现状,特别要弄清数据源所在的系统和其中的数据状况。
(2) 收集决策者的需求。分析领导的决策取向和当前最主要的工作目标,并初步建立系统的逻辑模型。
(3) 构建数据仓库。包括数据仓库的设计、组织和管理,以及决策信息的展示。
(4) 数据仓库的应用推广和人员的培训。
(5) 引进必要的产品和工具。
1. 王总工程师提出,对于数据仓库系统的开发,一般推荐采用增量的、演进的方式。采用该开发方法的关键之一是:确定业务范围的架构需要用于 (1) 的程度。这是因为数据仓库是用 (2) 的方法进行构建的。在使用该实现方法或阶段性数据仓库项目模型来构建业务范围架构中的一系列数据集时,可以一个接一个地集成不同 (3) 领域中的数据集,从而形成设计良好的业务数据仓库。其具体的实现步骤如下。
(1) 定义一个高层次的 (4) ,在不同的主题和可能的应用之间,提供企业范围的、一致的、集成的数据视图。其最大的好处在于可以大大减少以后的集成问题。
(2) 基于(1)所建立的模型, (5) 实现各自独立的数据集和企业数据仓库。
(3) 构造 (6) ,对不同的数据集进行集成。
(4) 构造一个 (7) 。在该仓库中,企业数据仓库是所有数据仓库数据的全权管理者,而这些数据分布在各个相关的 (8) 中。