概念设计的目标是产生反映()的数据库概念结构,即概念模式。

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问题:

概念设计的目标是产生反映()的数据库概念结构,即概念模式。

考点:中级数据库系统工程师数据库设计数据库设计题库
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阅读下面一首唐诗,然后回答问题。(6分)

月 夜

刘方平

更深月色半人家,北斗阑干南斗斜。

今夜偏知春气暖,虫声新透绿窗纱。

(1)"平中见奇"是诗人创设诗境的高妙处,请结合诗歌前两句,赏析这一妙处的体现。

答:                                                                                                       

(2)运用拟人手法写景状物,赋予景物以灵性,往往能够取得特殊的艺术效果。试简析诗歌这一手法的运用。

答:        

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供热管网补偿器的作用是消除(),确保管网安全运行。

A.过高压力

B.水锤效应

C.温度应力

D.脉动冲击

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阅读理解。

     A pioneering headteacher is calling for all high schools to follow his lead and start classes at 11 am,

allowing teenagers two hours extra in bed.

     Dr Paul Kelley, head of Monkseaton Community High School in North Tyneside, said it would mean

the end of sleeping in lessons before lunch, after experiments showed teenagers could have different body

clocks from adults and younger children.

     Russell Foster, an Oxford professor of neuroscience (神经学), tested the memory of 200 Monkseaton

pupils at 9 am and 2 pm using pairs of words, and discovered a 9% improvement in the afternoon. Students

correctly identified 51% of word pairs in the later session, compared with 42 % in the morning. Tayler

MeCullough, 15, one of the test subjects, said the majority of students would welcome the extra hours in

bed. "I'm extremely hard to get up in the morning. One or two people like to get to school early, but most

of us would be up for going in later. I'm sure it would make a big difference to our learning ability."

     Kelley is adamant that a change of school timetable will have a meaningful effect on exam performance.

He wants his school's governors to approve his plan and put the new timetable in place before the opening

of Monkseaton's new school building, the most technologically advanced in the country, in September.

     Kelley hopes his latest idea will be just as successful. "We have to be practical. But this proves that, by

starting later, children's learning improves, as does their health." Foster said, "This is preliminary (初步的)

data, but what's exciting is that it matches more detailed studies carried out in Canada and the US. Teenagers

get up late not because they are lazy but because they are biologically programmed to do so."

1. How many professors are mentioned in the passage?

A. One.

B. Two.

C. Three.

D. Four.

2. According to Russell Foster's research, _____.

A. the students tested had very good memories

B. the students tested did better jobs in the afternoon

C. 42% of the students tested could do very good jobs

D. 51% of the students tested could master 9% of words

3. What does the underlined word "adamant" in the fourth paragraph mean?

A. Angry.

B. Absorbed.

C. Adaptable.

D. Determined.

4. Foster's opinion on teenagers' getting up late is that _____.

A. teenagers are practical

B. teenagers are lazy-bones

C. it's based on their body development

D. it's good for their learning and health

题型:填空题

下列担保方式发放可以办理个人助业贷款的是()

A.异地保证.抵押.质押担保(经总行批准的区域除外)

B.以法人客户提供保证担保(总行批准的情况除外)

C.产权式酒店抵押担保

D.个人名下商铺

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请运用中国法制史的理论和知识对下列材料进行分析,并回答问题: 《大清光绪新法令》第一册:“时处今日,惟有及时详晰甄核,仿行宪政,大权统于朝廷,庶政公诸舆论,以立国家万年有道之基。” 《大清法规大全•宪政部》:“宪法者所以巩固君权,兼以保护臣民者也.臣等谨本斯义,辑成宪法大纲一章,首列大权事项,以名君为臣纲之义,次列臣民权利义务事项,以示民为邦本之义。虽君民上下处于法律范围之内,而大权仍统于朝廷广。” 问题: (1)这两段文字反映了什么问题该问题的指导原则是什么 (2)这两段文字的基本含义是什么 (3)这两段文字反映的立法宗旨和意义是什么 (4)举例说明其所反映的立法宗旨。

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