听力原文: Why do so many people live to a healthy old age in certain parts of the world? [31]What is the secret of their long lives? Three things seem to be very important: [29]fresh air, fresh food and a simple way of life. People work near their homes in the clean, mountain air instead of traveling long distances to work by car, bus or train. They do not sit all day in busy offices or factories, but work hard outdoors in the fields. They take more exercise and eat less food than people in the cities of the West. For years the Hunzas of the Himalayas did not need policemen, lawyers or doctors, There was no crime, no divorce and not much illness in their society. [30] They were a happy,peaceful people, famous all over India for their long, healthy lives.
(30)
A.Clean air, much food and more exercise.
B.Clean air, fresh food and less exercise.
C.Clean air, fresh food and simple life.
D.Hard work, much food and simple life.
第1题
数据仓库是具有基本特征的支持企业决策的数据集合,以下哪项不是数据仓库的特征?
A.数据与历史变化无关
B.数据是集成的
C.数据是相对稳定的
D.数据是面向主题的
第2题
数据仓库是具有基本特征的支持企业决策的数据集合,以下哪项不是数据仓库的特征? ()
A.数据与历史变化无关
B.数据是集成的
C.数据是相对稳定的
D.数据是面向主题的
第3题
数据仓库是具有基本特征的支持企业决策的数据集合,以下()不是数据仓库的特征。
A.数据与历史变化无关
B.数据是集成的
C.数据是相对稳定的
D.数据是面向主题的
第10题
数据仓库技术是决策支持系统的另一技术,下列列出的哪些是数据仓库的基本特征?
Ⅰ.数据仓库的数据是面向主题的
Ⅱ.数据仓库的数据是集成的
Ⅲ.数据仓库的数据是相对稳定的
Ⅳ.数据仓库的数据是体现历史变化的
A.Ⅰ,Ⅲ和Ⅳ
B.全部
C.Ⅰ、Ⅱ和Ⅲ
D.Ⅱ,Ⅲ和Ⅳ
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