下面列出的条目中,哪些是数据仓库的基本特征  Ⅰ.数据仓库是面向主题的  Ⅱ.数据仓

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问题:

下面列出的条目中,哪些是数据仓库的基本特征  Ⅰ.数据仓库是面向主题的  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,数据仓库的数据是反映历史变化的

A.Ⅰ,Ⅱ和Ⅲ

B.Ⅰ,Ⅱ和Ⅳ

C.Ⅱ,Ⅲ和Ⅳ

D.都是

考点:计算机等级考试数据库技术计算机三级(数据库技术)2
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How many times have you got upset because someone wasn't doing his job,because your child isn't behaving?How many times have you been irritated (恼怒的) when you've planned something carefully and things didn't go as you'd hoped?

This kind of anger and irritation happens to all of us—it’s part of the human experiences.

One thing that irritates me is when people talk during a movie,or cut me off in traffic. Actually, I have a lot of these little annoyances—don't we all?And it isn’t always easy to find peace when you’ve become upset or irritated.

Let me tell you a little secret to finding peace of mind: see the glass as already broken .

See, the cause of our stress, anger and irritation is that things don't go the way we like, the way we expect them to. Think of how many times this has been true for you. And so the solution is simple:expect things to go wrong, expect things to be different than we hoped or planned,expect the unexpected to happen. And accept it.

One quick example: on our recent trip to Japan, I told my kids to expect things to go wrong—they always do on a trip. I told them, “See it as part of the adventure.”

And this worked like a charm. When we inevitably(不可避免地) took the wrong train on a foreign­language subway system, or when it rained on the day we went to Disney Sea, or when we took three trains and walked 10 blocks only to find the National Children's Castle closed on Mondays...they said, “It's part of the adventure!” And it was all OK—we didn't get too bothered.

So when the nice glass you bought inevitably falls and breaks some day, you might get upset. But things will be different, if you see the glass as already broken, from the day you get it. You know it'll break some day, so from the beginning, see it as already broken. Be a time­traveler, or someone with time­traveling vision, and see the future of this glass, from this moment until it inevitably breaks. And when it breaks, you won't be upset or sad—because it was already broken, from the day you got it. And you’ll realize that every moment you have with it is precious.

小题1:The author would probably agree that________.

A.we should control our anger and irritation

B.we must get well prepared for the future

C.optimism can help us overcome our anger and irritation

D.anger and irritation is a natural part of our life小题2:The purpose of the author is to________.

A.tell us his own experience in life

B.advise us how to find peace of mind

C.tell us a happy trip he took with his children

D.ask us to see things from both sides小题3:By the underlined part (in Para.3), the author tells us to________.

A.get ready for the worst result of things

B.enjoy the process of things

C.expect little from life

D.find the relationship between cause and effect小题4:The author’s children could enjoy their trip to Japan because________.

A.everything went smoothly

B.they had a lot of adventures

C.they had expected things to go wrong

D.they could soon get used to the customs there小题5:We can learn from the passage that the author________.

A.often gets angry in his life

B.can adjust his state of mind accordingly

C.always expects others to act in his way

D.always suffers from his anger and irritation

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文学史上所称“韩柳”是指()和()。

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关于安全生产管理机构和安全生产管理人员的作用的表述有误的是( )。

A.落实国家有关安全生产的法律法规

B.组织生产经营单位内部各种安全评价活动,负责日常安全检查

C.及时整改各种事故隐患

D.监督安全生产责任制的落实

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下列关于生物多样性的叙述不正确的是()

A.生物界的丰富多彩,起控制作用的是DNA的多样性

B.DNA分子结构的多样性主要表现为4种碱基配对方式的多样性

C.生物界的多样性是由蛋白质的多样性体现的

D.生物多样性包括基因多样性、种群多样性和生态系统多样性

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屋面由哪些构造组成请画图示意。

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