企业模型应该满足几个特性,下列几种特性中哪个(些)是它应具有的特性  Ⅰ.完整性

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问题:

企业模型应该满足几个特性,下列几种特性中哪个(些)是它应具有的特性  Ⅰ.完整性  Ⅱ.安全性  Ⅲ.适应性  Ⅳ.持久性

A.Ⅰ和Ⅱ

B.Ⅰ和Ⅳ

C.Ⅰ,Ⅲ和Ⅳ

D.Ⅱ

考点:计算机等级考试信息管理技术计算机三级(信息管理技术)64
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客运经营者、客运站经营者非法转让、出租道路运输经营许可证件的,由县级以上道路运输管理机构责令停止违法行为,收缴有关证件,处()的罚款。

A.1000元以上3000元以下

B.2000元以上1万元以下

C.2万元以上5万元以下

D.3万元以上10万元以下

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在工程设计中通常根据生产机械的负荷类型及工作制选用不同的电动机与之配套。生产机械的负载转矩T随转速n而变化的特性T=f(n)称为负载特性。图中所示四组曲线为不同生产机械的负载曲线。

 

有一种机械负载,负载转矩T与转速n成反比,阻转矩大,转速低;阻转矩小,转速高。以上四组曲线中表示这种负荷的负载曲线为()。

A.a

B.b

C.c

D.d

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There was a time in my life when beauty meant something special to me. I guess that would have been when I was about six or seven ye ars old, just several weeks or maybe a month before the orphanage turned me into an old man.

I would get up every morning at the orphanage, make my bed just like the little soldier that I had become and then I would get into one of the two straight lines and march to breakfast with the other twenty or thirty boys who also lived in my dormitory.

After breakfast one Saturday morning I returned to the dormitory and saw the house parent chasing the beautiful monarch butterflies who lived by the hundreds in the azalea (杜鹃花) bushes strewn around the orphanage.

I carefully watched as he caught these beautiful creatures, one after the other, and then took them from the net and then stuck straight pins through their head and wings, pinning them onto a heavy cardboard sheet.

How cruel it was to kill something of such beauty. I had walked many times out into the bushes, all by myself, just so the butterflies could land on my head, face and hands so I could look at them up close.

Every year when the butterflies would return to the orphanage and try to land on me I would try and shoo (用"嘘"声赶走,吓走)them away because they did not know that the orphanage was a bad place to live and a very bad place to die.

1. According to the passage, how did the author find the orphanage?

A. A favorable place to live.                B. A bad place to live.

C. A comfortable place for butterflies.  D. A favorable place for the old.

2. How did the people go to their meals?

A. By car.              B. On foot.            C. Queuing in two ways.              D. Any way they wanted.

3. Which of the following statements is TRUE, according to the passage?

A. I love everything of beauty when I was old.

B. The people in the orphanage stand in line doing everything.

C. The azalea bushes were planted by the people living in the orphanage.

D. I shooed the butterflies away because I didn’t want them to be killed.

4. What can we infer from the first two paragraphs?

A. I love beauty when I was about six or seven years old.

B. I became old very soon in the orphanage.

C. I had a very pleasant time in the orphanage.

D. I was tired with the life the way I lived in the orphanage.

5. What does the author think of the house parent?

A. Pitiless.             B. Kind.                C. Lovable.                          D. Beautiful.

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8世纪中期,罗马教会获得了意大利中部一大片土地,奠定了教皇国的基础,这是通过______获得的。[ ]

A.战争

B.欺诈

C.“丕平献土”

D.出钱购买

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用称量法测定某试样中的铁,称取试样0.1666g,经一系列处理得到Fe2O3的质量为0.1370g,求试样中以Fe表示的质量分数。
已知:M(Fe)=55.85g/mol;M(Fe2O3)=159.69g/mol

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