在对象—关系数据库系统中,创建新的基本数据类型需要说明的信息包括 Ⅰ.类型名 Ⅱ

题型:单项选择题

问题:

在对象—关系数据库系统中,创建新的基本数据类型需要说明的信息包括 Ⅰ.类型名 Ⅱ.类型的存储信息 Ⅲ.类型的地址 Ⅳ.类型与ASCII码之间的转换

A.Ⅰ、Ⅱ和Ⅲ

B.Ⅰ、Ⅱ和Ⅳ

C.Ⅱ、Ⅲ和Ⅳ

D.全部

考点:计算机等级考试数据库技术三级数据库技术笔试51
题型:单项选择题

某同学在研究电子在电场中的运动时,得到了电子由a点运动到b点的轨迹(图中实线所示),图中未标明方向的一组虚线可能是电场线,也可能是等差等势面,则下列说法正确的是(  )

A.如果图中虚线是电场线,则电子在b点动能最大

B.如果图中虚线是等势面,则电子在b点动能最小

C.不论图中虚线是电场线还是等势面,a点的场强都大于b点的场强

D.不论图中虚线是电场线还是等势面,a点的电势都高于b点的电势

题型:单项选择题

R&D的绩效指标应涵盖()。

A.效益

B.柔性

C.质量

D.数量

E.创新

题型:单项选择题

三峡(郦道元)

  自三峡七百里中,两岸连山,略无阙处。重岩叠嶂,隐天蔽日。自非亭午夜分,不见曦月。

  至于夏水襄陵,沿溯阻绝。或王命急宣,有时朝发白帝,暮到江陵,其间千二百里,虽乘奔御风,不以疾也。

  春冬之时,则素湍绿潭,回清倒影。绝(巘或巚)多生怪柏,悬泉瀑布,飞漱其间。清荣峻茂,良多趣味。

  每至晴初霜旦,林寒涧肃,常有高猿长啸,属引凄异,空谷传响,哀转久绝。故渔者歌曰:“巴东三峡巫峡长,猿鸣三声泪沾裳。”

小题1:给加横线的字注音。(2分)

①略无处( )  ②月(       )③飞其间 (        )④素(      )

小题2:解释加横线的词语。(4分)

①沿阻绝(        )      ②夏水陵(     )

③虽乘御风(        )    ④引凄异(       )

小题3:用现代汉语翻译下面各句。(4分)

①虽乘奔御风,不以疾也。

译:                                                                             

②清荣峻茂,良多趣味。

译:                                                                             

小题4:从作者对三峡四季景象的描绘中,你感受到了作者怎样的情怀?(2分)                         

                                                                     

题型:单项选择题

Equipped only with a pair of binoculars (双筒望远镜) and ready to spend long hours waiting in all weathers for a precious glance of a rare bullfinch(红腹灰雀). Britain’s birdwatchers had long been supposed to be lovers of a minority sport. But new figures show birdwatching is fast becoming a popular pastime, with almost three million of us absorbed in our fluttering feathered friends.

Devoted birdwatchers, those prepared to travel thousands of miles for a sighting of a rare Siberian bird, are fast being joined by a new breed of follower whose interest is satiated by watching a few finches (雀科鸣鸟) on a Sunday walk or putting up a bird-box in the back garden.

“Almost three million UK birdwatchers is certainly possible if you include everyone with only a casual interest,” Stephen Moss said in his newly published book—A Bird in the Bush: a Social History of Birdwatching—which records the pursuit from the rich Victorian Englishman’s love of shooting rare birds to the less offensive observational tendencies of birdwatchers today.

Television wildlife programmes have helped to fuel the new trend. Last summer, BBC 2’s Britain Goes Wild was a surprise success. It pulled in three million viewers and led to bird-houses selling out across the UK as 45,000 people promised to put up a box.

Birdwatchers’ networking system first came to the attention of the nation in 1989, when a birdwatcher caught sight of the first Vermivora chrysoptera—a golden-winged songbird from North America—to be seen in Britain. He put a message out on the network service Birdline, and the next day 3,000 birdwatchers proved the full pull of a truly rare bird as they visited the Tesco car park in Kent, where it had settled. Today, birdwatchers can log on to www.birdline.co.uk or have news of the latest sightings texted to their phones.

“Multimillion-pound spending on binoculars, bird food and boxes point to the increasing numbers of birdwatchers,” said David Cromack, the editor of Bird Watching magazine, “The number of people involved is so big that they have great potential to influence government decisions affecting the environment.”

小题1:The word “satiated” in paragraph 2 can best be replaced by “_______”.

A.affected

B.shared

C.satisfied

D.narrowed小题2:What happened after the message of seeing a Vermivora chrysoptera was put on the network?

A.Birdwatchers helped the rare bird settle in Kent.

B.Large numbers of birdwatchers went to view the bird.

C.Many birdwatchers logged on to the website for details.

D.Birdwatchers showed their determination to protect the rare bird.小题3:Which of the following CANNOT be true according to the passage?

A.Television wildlife programmes started the popular pastime of birdwatching.

B.The network service has contributed to the rapid development of birdwatching.

C.Birdwatching in Britain was long considered a sport with a small group of followers.

D.The current situation of birdwatching may promote the protection of the environment.小题4:The passage mainly tells us about ________ in UK.

A.the history of bird watching

B.a growing passion for bird watching

C.the impact of media on bird watching

D.bird watching as a popular expensive sport

题型:单项选择题

纳税单位无偿使用免税单位的土地免征城镇土地使用税;免税单位无偿使用纳税单位的土地照章征收城镇土地使用税。()

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