试题与答案

在如图所示的圆锥摆中,已知绳子长度为L,小球质量为m,绳子转动过程中与竖直方向的

题型:填空题

题目:

在如图所示的圆锥摆中,已知绳子长度为L,小球质量为m,绳子转动过程中与竖直方向的夹角为θ,则小球作匀速圆周运动所需的向心力大小为__________;小球做匀速圆周运动的周期__________。

答案:

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题型:阅读理解

All over the world, libraries have begun the Herculean task of making faithful digital copies of the books, images and recordings that preserve the intellectual effort of humankind.  For armchair scholars, the work promises to bring such a wealth of information to the desktop that the present Internet may seem amateurish in retrospect. …

Librarians see three clear benefits to going digital.  First, it helps them preserve rare and fragile objects without denying access to those who wish to study them.  The British Library, for example, holds the only medieval manuscript of Beowulf in London.  Only qualified scholars were allowed to see it until Kevin S. Kiernan of the University of Kentucky scanned the manuscript with three different light sources (revealing detail not normally apparent to the naked eye) and put the images up on the Internet for anyone to peruse (阅览).  Tokyo’s National Diet Library is similarly creating highly detailed digital photographs of 1,236 woodblock prints, scrolls and other materials it considers national treasures so that researchers can scrutinize them without handling the originals.

A second benefit is convenience.  Once books are converted to digital form, patrons can retrieve them in seconds rather than minutes.  Several people can simultaneously read the same book or view the same picture.  Clerks are spared the chore of reshelving.  And libraries could conceivably use the Internet to land their virtual collections to those who are unable to visit in person.

The third advantage of electronic copies is that they occupy millimeters of space on a magnetic disk rather than meters on a shelf.  Expanding library buildings is increasingly costly.  The University of California at Berkeley recently spent $46 million on an underground addition to house 1.5 million books – an average cost of $30 per volume.  The price of disk storage, in contrast, has fallen to about $2 per 300-page publication and continues to drop.

小题1:The best title for this passage would be __________.

A.Three Benefits of Libraries

B.Libraries Going Digital

C.Space-saving E-learning

D.Security of Electronic Reading小题2:Which paragraph(s) in the text offer(s) further explanation of the central idea?

A.Paragraphs 2, 3 and 4

B.Paragraphs 3 and 4

C.Paragraphs 2 and 4

D.Paragraph 4小题3:Which one of the following is mentioned as the advantages of E-libraries

A.Old manuscripts can be moved more easily

B.Materials can be examined without being touched

C.Fewer staff will be required in libraries

D.Libraries will be able to move underground小题4:What does the word ‘scrutinize’ probably mean?

A.keep for a while

B.reprint

C.restore

D.examine carefully

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题型:单项选择题

公司质管部经理老吕在质量管理的总体目标、步骤、措施等方面与公司主要领导人有不同看法。老吕认为,质量管理的重要性在公司上下并未得到充分重视。公司领导则认为,他们是十分重视产品质量问题的,只是老吕的质量控制方案成本太高且效果不好。最近一段时间,这种矛盾呈现激化现象。一天上午,老吕接到公司周副总的电话,通知他去北京参加一个为期10天的管理培训班,而老吕则认为自己主持的质改推进计划正在紧要关头,一时脱不开身,公司领导应该是知道这个情况的,他们作出这样的安排显然是不支持甚至是阻挠自己的工作。因此,老吕不仅拒绝了领导的安排,还发了一通脾气;而公司周副总也十分恼火,认为老吕太刚愎自用,双方不欢而散。你认为这里出现的沟通失败的最主要原因是什么?()

A.周副总发送的信息编码有问题。

B.信息传递中出现了噪音。

C.老吕对于周副总的反馈有问题。

D.老吕对于信息的译码出了问题。

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