A researcher needs to regularly analyze large quantities of data.  They are interested in putting together a cluster of 16 UDB EEE partitions of four processors each for their data mining environment.  Each UDB partition needs to be approximately 15 rPerf

题目

A researcher needs to regularly analyze large quantities of data.  They are interested in putting together a cluster of 16 UDB EEE partitions of four processors each for their data mining environment.  Each UDB partition needs to be approximately 15 rPerf.  Which of the following solutions would best fit their performance needs?()

  • A、p655 4-way nodes
  • B、p655 8-way nodes
  • C、p5-570 4-way nodes
  • D、p5-570 8-way nodes

相似考题
更多“A researcher needs&#”相关问题
  • 第1题:

    University of Arizona researcher Dr. William Rathji says that after a study based on looking into garbage cans, the average family wastes at least $150 per year in food. “Homemakers go out of their w

    (1) Which of the following statements is true? ()

    A.American housewives are not good homemakers

    B.Upper-income families are more wasteful than lower-income ones

    C.American families throw away almost as much food as they consume

    D.Americans waste a great deal of dog food

    (2)American families throw out between () of edible food every year.

    A.5%~8%

    B.8%~10%

    C.20%~28%

    D.8%~20%

    (3)When sugar prices doubled, waste of sugar ().

    A.went down

    B.went up

    C.stayed the same

    D.was cut in half

    (4) When do American families waste more food? ()

    A.When prices are high

    B.When food is scarce

    C.When they think it is spoiled

    D.All of the above

    (5) Large quantities of food are thrown out because a homemaker ().

    A.thinks they are not delicious

    B.says they taste bitter and hot

    C.thinks they smell bad

    D.suspects they are spoiled when they are not


    答案:BDBDD

  • 第2题:

    共用题干
    Preferences Vary on Circumstances of Dying

    Among terminally(晚期)ill people, attitudes differ on what they think constitutes a
    _______(1)or bad death,the results of a new study suggest.
    Dr. Elizabeth K. Vig of the University of Washington in Seattle and colleagues interviewed
    26 men with_________(2)heart disease or cancer.The men were asked to describe
    good and bad deaths,and they also answered________(3)about their preferences
    for dying.
    "In this small study,terminally ill men described good and bad deaths_____(4),"
    Vig said."They did not hold the same views about such issues________(5)the
    presence of others at the very end of life or preferred location of death."
    Many of the men considered_______(6)in their sleep to be a good death.The
    reasons were varied and included not_________(7) that death was imminent(即将发生
    的),and that death would be painless.
    For close to half of the men , a prolonged(拖延的)death was __________ (8) a bad
    death.Some of the men associated a prolonged death with prolonged pain,_________
    (9)others thought a prolonged death would be difficult for their families.
    Most men said that their______(10)were very important to them,but this did
    not mean that they wanted relatives close at the________(11)of death."Valuing family did
    not also_________(12)wanting family present at the very end of life,"Vig said.
    "In fact,some expressed concerns___________(13)burdening loved ones,"Vig said.
    For instance,some men were worried about the emotional or________(14)
    impact on their family members,according to the Washington researcher. Some were
    worried________(15)their need for care would be a burden on their families,she said.

    _________(3)
    A: reports
    B: opinions
    C: questions
    D: remarks

    答案:C
    解析:

  • 第3题:

    共用题干
    Food Fright
    Experiments under way in several labs aim to create beneficial types of genetically modified(GM)foods,including starchier potatoes and caffeine-free coffee beans.Genetic engineers are even trying to transfer genes from a cold-water fish to make a frost-resistant tomato.A low-sugar GM strawberry now in the works might one day allow people with health problems such as diabetes to enjoy the little delicious red fruits again.GM beans and grains supercharged with protein might help people at risk of developing kwashiorkor. Kwashiorkor,a disease caused by severe lack of protein,is common in parts of the world where there are severe food shortages.
    Commenting on GM foods,Jonathon Jones,a British researcher,said,"The future benefits will be enormous,and the best is yet to come."
    To some people,GM foods are no different from unmodified foods."A tomato is a tomato," said Brian Sansoni,an American food manufacturer.
    Critics of GM foods challenge Sansoni's opinion.They worry about the harm that GM crops might do to people,other animals,and plants.
    In a recent lab study conducted at Cornell University,scientists tested pollen made by Bt corn,which makes up one-fourth of the U .S.corn crop.The scientist sprinkled the pollen onto milkweed,a plant that makes a milky juice and is the only known food source of the monarch but-terfly caterpillar. Within four days of munching on the milkweed leaves,almost half of a test group of caterpillars had died."Monarchs are considered to be a flagship species for conservation,"said Cornell researcher Linda Raynor."This is a warning bell."
    Some insects that are not killed by GM foods might find themselves made stronger. How so? The insecticides used to protect most of today's crops are sprayed on the crops when needed and decay quickly in the environment.But GM plants produce a continuous level of insecticide.Insect species feeding on those crops may develop resistance to the plants and could do so in a hurry, say the critics.Insects may also develop a resistance to the insecticide Bt.
    At the forum on GM food held last year in Canada,GM crops that have been made resistant to the herbicide might crossbreed with wild plants,creating"superweeds"that could take over whole fields.
    So where do you stand?Should GM foods be banned in the United States,as they are in parts of Europe?Or do their benefits outweigh any of the risks they might carry?

    What happens to those insects when not killed by the spray of insecticide?
    A: They may lose their ability to produce offspring.
    B: They may have a higher ability to adapt to the environment.
    C: They move to other fields free from insecticide.
    D: They never eat again those plants containing insecticide.

    答案:B
    解析:
    第一、二段确实谈到了转基因食物给人类带来的美好前景。


    第五段谈到,在milkweed上喷洒花粉,造成以milkweed为食物的大蝴蝶幼虫死亡。本段最后一句说:"This is a warning bell."


    答案的依据是第六段第一句“Some insects that are not killed by GM foods might find themselves made stronger."


    答案的依据是第八段第二句“Should GM foods be banned in the United States, as they are in parts of Europe?”这个句子表明,有些欧洲国家已禁止生产、稍售转基因食品,而美国没有这条法令。


    我们确实无法判断。作者既谈到转基因食物的好处,也谈到转基因食物的危害性,给读者的印象是:他在客观地介绍转基因食物。

  • 第4题:

    “There is one and only one social responsibility of business,”wrote Milton Friedman,a Nobel prize-winning economist“That is,to use its resources and engage in activities designed to increase its profits.”But even if you accept Fiedman’s premise and regard corporate social responsibility(CSR)policies as a waste of shareholders money,things may not be absolutely clear-cut.New research suggests that CSR may create monetary value for companies–at least when they are prosecuted for corruption.The largest firms is America and Britain together spend more than$15 billion a year on CSR,according to an estimate by EPG,a consulting firm,This could add value to their businesses in three ways.First,consumers may take CSR spending as a“signal”that a company’s products are of high quality.Second,customers may be willing to buy a company’s products as an indirect way to donate to the good causes is helps.And third,through a more diffuse“halo effect,”whereby its good deeds earn it greater consideration from consumers and others.Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three.A recent study attempts to separate them by looking at bribery prosecutions under America’s Foreign Corrupt Practices Act(FCPA).It argues that since prosecutors do not consume a company's products as part of their investigations,they could be influenced only by the halo effect.The study found that,among prosecuted firms,those with the most comprehensiveCSR programmes tendedto getmore lenient penalties.Their analysis ruled out the possibility that it was firms'political influence,rather than their CSR stand,that accounted for the leniency:Companies that contributed more to political campaigns did not receive lower fines.In all,the study concludes that whereas prosecutors should only evaluate a case based on its merits,they do seen to influenced by a company’s record in CSR."We estimate that either eliminating a substantial labour-rights concern,such as child labour,or increasing corporate giving by about 20%results in fines that generally are 40%lower than the typical punishment for bribing foreign officials,"says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect,rather than the other possible benefits,when they decide their do-gooding policies.But at least have demonstrated that whencompanies get into trouble with the law,evidence of good character can win In all,the study concludes that whereas prosecutors should only evaluate a case based on its merits,they do seen to influenced by a company’s record in CSR."We estimate that either eliminating a substantial labour-rights concern,such as child labour,or increasing corporate giving by about 20%results in fines that generally are 40%lower than the typical punishment for bribing foreign officials,"says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect,rather than the other possible benefits,when they decide their do-gooding policies.But at least have demonstrated that whencompanies get into trouble with the law,evidence of good character can win them a less costly punishment.
    When prosecutors evaluate a case,a company's CSR record.

    A.has an impact on their decision.
    B.comes across as reliable evidence.
    C.increases the chance of being penalized.
    D.constitutes part of the investigation.

    答案:B
    解析:
    细节题。根据题干中的prosecutors evaluate a case回文定位到第五段第二句。该句指出虽然检察官在评估一个案件时,应该基于其功绩,实际上还是受到了公司CSR记录的影响。故正确答案为选项B。题干中的a company’s CSR record是原文信息的复现,选项中的has an impact是原文be influenced的同义替换,their decision具体指检察官的评估决定。选项A中的reliable evidence无中生有,文中并未提及将CSR作为一种可靠的证据。选项C

  • 第5题:

    In the experiment the researcher placed a rat in a maze ( ) it was presented with different smells to see if it can.

    A. what
    B. that
    C. where
    D. which

    答案:C
    解析:
    考查定语从句,“在这个实验中,是将小白鼠放置在雾霾中进行测试”,in a maze是先行词,是一种状态,且后面的从句是个完整的句子,所以应该用关系副词,故选项C正确。A项不用于定语从句中;B项that在定语从句中通常充当主语或宾语,修饰人或物;D项的先行词应该是物。

  • 第6题:

    资料:International Federation for Scientific Research
    #203 Lotus Garden Road, Mumbai 400 032, India
    13 August
    Dr. Jonas Radcliffe
    SNB Laboratories
    Glasgow G3 8HN
    United Kingdom
    Membership #2789R
    Dear Dr. Radcliffe,
    This year, the International Federation for Scientific Research (IFSR) will hold its annual convention from 20 to 23 November.
    The conference will be held in Colombo, Sir Lanka, and will have Changing Migration Patterns as its theme. Our keynote speaker is Dr. Preeti Pillai, dean of biology at Gujarat University of Science and the author of the acclaimed book Migrant Birds in Asia. In addition, more than 100 noted speakers will be presenting their latest research findings related to migration and ecology.

    Register before 21 September and receive a 20 percent reduction on the registration fee. To register online and to look at presentation summaries, please visit www.ifsr.org Information on hotel accommodation and transportation options is also available on the site.

    The IFSR hopes you will be able to attend this important and informative convention.
    Yours sincerely,

    Me1issa Oduya
    Director, IFSR

    Why was the letter written?

    A.To invite a researcher to speak at a convention.
    B.To recommend an academic article.
    C.To encourage a member to attend a conference.
    D.To ask a scientist to post research data to a Web site.

    答案:C
    解析:
    本题考查的是主旨大意。
    【关键词】Why;letter written
    【主题句】最后一个自然段The IFSR hopes you will be able to attend this important and informative convention.国际科学研究联合会希望您能够出席此次盛会。
    【解析】本题的问题是“为什么写这封信?”。A选项“邀请一位研究者在一场大会上讲话”,B选项“推荐一篇学术文章”,C选项“鼓励一位成员参加一场会议”,D选项“要求科学家在一个网站上发布研究数据”。根据主题句可知,这是一封大会邀请函。

  • 第7题:

    共用题干
    Losing Weight
    Girls as young as 10 years old are dieting and in danger of developing unhealthy attitudes about weight,body image and food,a group of Toronto researchers reported Tuesday.
    Their study of 2,279 girls aged 10 to 14 showed that while the vast majority had healthy weights,nearly a third felt they were overweight and were trying to lose pounds. Even at the tender age of 10,nearly 32 percent of girls felt"too fat"and 3 1 percent said they were trying to diet.
    McVey,a researcher at the Hospital for Sick Children in Toronto,and her colleagues analyzed data collected in a number of surveys of southern Ontario school girls between 1993 and 2003,reporting their findings in Tuesday's issue of the Canadian Medical Association Journal.
    Nearly 80 percent of the girls had a healthy body weight and only 7.2 percent were considered overweight using standard weight-to-height ratios.Most researchers suggest the rate of overweight children in this country is several times higher than that figure.
    Nearly 30 percent of the girls reported they were currently trying to lose weight,though few admitted to dangerous behavior such as self-induced vomiting.
    Still,a test that measured attitudes towards eating showed 10.5 percent of survey participants were already at risk of developing an eating disorder.
    "We're not talking about kids who've been prescribed a diet because they're above average weight or overweight. We're talking about children who are within a healthy weight range.And they have taken it upon themselves to diet to lose weight,"McVey said,acknowledging she found the rates disturbing. She said striking a balance between healthy weights and healthy attitudes towards food and body image is a complex task,with no easy solutions.

    What kind of institution does the lead researcher work with?
    A: A school.
    B: A hospital.
    C: An association.
    D: A charity.

    答案:B
    解析:
    文章第二段中的第一句和第四段中的第-句先后提到,接受调查的女孩中的绝大多数体重都在健康范围内。


    文章的第二段提到,有将近1/3的女孩认为自己超重。


    文章的第二段提到,接受调查的是年龄为10岁至14岁的女孩。


    文章的第三段提到,主要研究人员McVey女士在一家医院工作。


    文章的第六段提到,有关体重、体形和饮食等的不健康态度使得一些女孩子面临饮食失调的危险。

  • 第8题:

    The researcher has to start looking for a company()

    A which I would like you to have.

    B that values his new ideas.

    C which is the Mark 2 project.

    D that the process can be made simpler.


    B

  • 第9题:

    单选题
    The researcher has to start looking for a company()
    A

     which I would like you to have.

    B

     that values his new ideas.

    C

     which is the Mark 2 project.

    D

     that the process can be made simpler.


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    The researcher has just begun a detailed ______ of vaccines for the common cold this month.
    A

    work

    B

    study

    C

    glance

    D

    insight


    正确答案: A
    解析:
    句意:研究员这个月刚开始详尽研究普通感冒疫苗。此处意为“详尽的研究”,选项中只有study表示“研究”,选择B项detailed详细的,详尽的。study研究,学习。glance扫视,浏览。insight洞察力,见识。

  • 第11题:

    单选题
    When a researcher reads an academic paper to see if it is relevant to his field of interest, which one of the reading skills is he using? _____
    A

    Skimming

    B

    Scanning

    C

    Inferring

    D

    Read in depth


    正确答案: D
    解析:
    Skimming为快速阅读,是快速了解文章内容的方法之一。

  • 第12题:

    单选题
    Evidence, reference, and footnotes by the thousand testify to a scrupulous researcher who does considerable justice to a full range of different theoretical and political positions.
    A

    trustworthy

    B

    intelligent

    C

    diligent

    D

    meticulous


    正确答案: A
    解析:
    句意:数以千计的证据、参考和脚注为这位严谨的研究者作证,他公平而且全方位地对待各种不同的政治和理论立场。scrupulous小心谨慎的。meticulous“小心翼翼的”与之相符。trustworthy可信赖的。intelligent聪明的。diligent勤勉的。

  • 第13题:

    What role does the teacher play at the feedback stage?

    A.Assessor.
    B.Resource-provider.
    C.Controller.
    D.Researcher.

    答案:A
    解析:
    考查教师角色。在教学反馈阶段,教师的角色是评估者,故选A。

  • 第14题:

    共用题干
    Smoking can Increase Depressive Symptoms in Teens

    While some teenagers may use cigarettes to "self-medicate"(自我治疗)against the blues(忧郁),sci-
    entists at the University of Toronto and the University of Montreal have found that smoking may actually
    ______________
    (51)depressive symptoms in some teens.
    "This observational study is one of the few to examine the perceived ______________(52)benefits of
    smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco
    Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating
    effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported
    higher depressive symptoms."
    As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their use
    of cigarettes to ______________
    (55)mood.Secondary schools were selected to provide a mix of French and
    English participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-
    cioeconomic neighbourhoods.
    Participants were divided into three
    ______________ (57):never smokers;smokers who did not use ciga-
    rettes to self-medicate,improve mood or physical
    ______________ (58);smokers who used cigarettes to self-
    medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tired
    to do things;had
    ______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt
    hopeless about the future;felt anxious or tense;and worried too much about things.
    " Smokers who used cigarettes as mood
    ______________( 60 ) had higher risks of elevated(提升)depres-
    sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,a
    professor at the University of Montreal Department of Social and Preventive Medicine."Our study found that
    teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing
    depressive symptoms."
    The______________ (63)between depression and'smoking exists______________(64)among teens that use
    cigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher
    among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton.

    _________(58)
    A:beauty
    B:state
    C:world
    D:activity

    答案:B
    解析:
    由前后两句的转折关系可知,抽烟不是减轻忧郁,而是加重(increase)了忧郁的症状。
    由第五段的最后一句话中的“emotional benefits”可知选emotional合适。
    由前后两句语境可知此处表示转折关系,四个关联词只有B项合适。
    in the long term意为“长期”,为固定搭配。
    抽烟只能影响(affect)情绪,而不是其他的反应。
    schools located意为“学校坐落在……”,其他选项不符合句意。
    由下文可知,参加者是被分成三组(groups)。
    mood or physical state意为“精神或身体状况”,为常用搭配。
    have trouble doing sth.意为“做……有困难”,为固定短语。
    mood improver意为“情绪改善者”,符合语境。
    由前面的“higher”可知此处是比较级,所以用than。
    at risk为固定词组,意为“有风险”;at higher risk意为“有更大的风险”。
    在忧郁和抽烟之间只有“联系”(association),而不是“合作”、“不同”与“一致”。
    这种抽烟和忧郁的联系主要存在于抽烟感觉好的青少年中,由句意知选B。
    由动词不定式后面强调的内容可知,此处是强调其重要性,所以选A。

  • 第15题:

    Most of us have experienced the odd feeling of deja vu,often regarded as a supernatural force or a glitch in the matrix.You may perform an action and suddenly feel as though you have done it in that exact l manner some time in your life.The feeling may even be 2 by a place or by spoken words,leaving some with the feeling they could 3 0r predict what happens next.Deja vu usually strikes without 4.But researchers from Colorado State University(CSU)have developed a technique to induce the feeling 5 using dynamic video sequences,6 previous experiment methods.Participants were led through virtual reality scenes 7 a junkyard or a hedge garden,which shared slight spatial similarities 8 were thematically unrelated.9 they could not"consciously remember the prior scene,"one researcher said,the participants'brain picked up on it and recognized"the similarity."The results showed deja vu"did not 10 above-chance ability to predict the next turn in a navigational path resembling a(n)11 experienced but unrecalled path,"although participants did report"12 feelings of knowing the direction of the next turn."Researchers 13 deja vu does not predict the future but makes people believe they can.It has been 14 as a"metamemory"phenomena,reflecting a(n)15 awareness of unspecific memories.Follow-up experiments are now being 16 by the team to look 17 the main cause behind the feeling of prediction.The studies hope to address( )it's the familiarity process that 19 the feeling,or hindsight bias 20 people feel convinced they knew what was going to happen after it happens

    A.what
    B.whether
    C.that
    D.while

    答案:B
    解析:
    本题考查句内语义逻辑。空格句现有内容指}IJ,研究希望解决是“熟悉过程(the familiarity process)”或者“后见之明偏见”(or hindsight bias)……。由上句“研究探究的是预测感背后的成因(the main cause)”及空格后“并列连词or”可推知.the familiarity process与hindsight bias是研究人员推测的原因.研究旨在确定真正原因究竟是哪一项。故空格词为B.whether.以whether A or B…结构表示选择、推测之意。

  • 第16题:

    “There is one and only one social responsibility of business,”wrote Milton Friedman,a Nobel prize-winning economist“That is,to use its resources and engage in activities designed to increase its profits.”But even if you accept Fiedman’s premise and regard corporate social responsibility(CSR)policies as a waste of shareholders money,things may not be absolutely clear-cut.New research suggests that CSR may create monetary value for companies–at least when they are prosecuted for corruption.The largest firms is America and Britain together spend more than$15 billion a year on CSR,according to an estimate by EPG,a consulting firm,This could add value to their businesses in three ways.First,consumers may take CSR spending as a“signal”that a company’s products are of high quality.Second,customers may be willing to buy a company’s products as an indirect way to donate to the good causes is helps.And third,through a more diffuse“halo effect,”whereby its good deeds earn it greater consideration from consumers and others.Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three.A recent study attempts to separate them by looking at bribery prosecutions under America’s Foreign Corrupt Practices Act(FCPA).It argues that since prosecutors do not consume a company's products as part of their investigations,they could be influenced only by the halo effect.The study found that,among prosecuted firms,those with the most comprehensiveCSR programmes tendedto getmore lenient penalties.Their analysis ruled out the possibility that it was firms'political influence,rather than their CSR stand,that accounted for the leniency:Companies that contributed more to political campaigns did not receive lower fines.In all,the study concludes that whereas prosecutors should only evaluate a case based on its merits,they do seen to influenced by a company’s record in CSR."We estimate that either eliminating a substantial labour-rights concern,such as child labour,or increasing corporate giving by about 20%results in fines that generally are 40%lower than the typical punishment for bribing foreign officials,"says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect,rather than the other possible benefits,when they decide their do-gooding policies.But at least have demonstrated that whencompanies get into trouble with the law,evidence of good character can win In all,the study concludes that whereas prosecutors should only evaluate a case based on its merits,they do seen to influenced by a company’s record in CSR."We estimate that either eliminating a substantial labour-rights concern,such as child labour,or increasing corporate giving by about 20%results in fines that generally are 40%lower than the typical punishment for bribing foreign officials,"says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect,rather than the other possible benefits,when they decide their do-gooding policies.But at least have demonstrated that whencompanies get into trouble with the law,evidence of good character can win them a less costly punishment.
    The author views Milton Friedman’s statement about CSR with.

    A.tolerance
    B.skepticism
    C.uncertainty
    D.approval

    答案:A
    解析:
    态度题。根据题干中的关键词Milton Friedman,CSR可以定位到首段首句。该句提出了米尔顿·弗里德曼的观点,他认为:“企业有且只有一种责任,为增加利润而运用资源,开展活动”。紧接着二句转折并之后提出作者的观点:“things may not be absolutely clear-cut”,即情况并不明确。由此推知,作者认为弗里德曼的观点不明确。故正确答案为A选项uncertainty,这是原文not clear-cut的同义替换。选项B skepticism怀疑和选项C tolerance宽

  • 第17题:

    Passage Two
    Generationsof Americans have been brought up to believe that a good breakfast is essentialto one′s life.Eating breakfast at the start of the day,we have been told,and told again,is as necessary asputting gasoline in the family car before starting a trip.But for many people,the thought of food as the first thing in the morning is never a pleasure Sodespite all the efforts,they still take no breakfast.
    Between 1977 and 1983,the latest year for which figures could beobtained,the number of people who didn′t have breakfast increased by 33%from8.8 million to 11.7 million--according to the Chicago-based Market ResearchCorporation of America.For those who dislike eating breakfast,however,thereis some good news.
    Several studies in the last few years have shown that,for adults especially,there may be nothing wrong with omitting breakfast."Going without breakfast does not affect work,"said Arnold E.Bender,former professor of nutrition at Queen Elizabeth College in London,"nor does giving people breakfast improve work."Scientific evidence linkingbreakfast to better health or better work is surprisingly inadequate(不充分),and most of the recent work involves children,not adults."The literature,"says one researcher,Dr.Earnest Polite at theUniversity of Texas,"is poor."

    What does the word"literature"in the last sentence?refer to?

    A.Modem American literature.
    B.Any printed materials.
    C.Written works on a subject.
    D.Stories,poems and plays.

    答案:C
    解析:

  • 第18题:

    In the experiment , the researcher placed a rat in a maze, ___ it was presented with different smells to see if it can resist the distraction and get to the exit.

    A.what

    B.that
    C.where

    D.which

    答案:C
    解析:
    本题主要考查状语从句,题目意为“在这个试验中,研究者把一只小白鼠放到迷宫里,迷宫里有一些不同的味道,目的是看小白鼠是否能够抵抗干扰到达出口。”A、D项用于从句缺少必要成分时,如主语,宾语,表语。 而该句中的从句部分已然完整。因此A、D项错误。 B项that可用于名词性从句,在从句中不充当成分,而如果用that做引导词,和主句部分无法构成名词性从句中主从句的关系。that也可用于定语从句,而因为空格前是逗号,应该构成非限定性定语从句,非限定性定语从句中不可使用that作引导词。因此B项错误。而C项引导词where引导从句构成地点状语从句,和主句中的maze相呼应。因此选C项。

    考点
    状语从句

  • 第19题:

    He is a physician.

    A:researcher
    B:professor
    C:doctor
    D:student

    答案:C
    解析:

  • 第20题:

    单选题
    The author of the text is primarily concerned with ______.
    A

    advancing a new methodology for changing a monkey’s social behavior

    B

    comparing the methods of several research studies on aggression among monkeys

    C

    explaining the reasons for researcher’s interest in monkey’ s social behavior

    D

    discussing the development of investigators’ theories about aggression among monkeys


    正确答案: D
    解析:
    主旨题。文章首段首句即指出研究猴子行为的人员经常被monkeys’ aggressive potential and the consequent need for social control of their aggressive behavior震惊到。随后就讲述了现代科学家们对aggression的新认识和发现,因此D项“讨论了研究人员关于猴子攻击性理论的发展”可以概括全文。

  • 第21题:

    单选题
    A researcher needs to regularly analyze large quantities of data.  They are interested in putting together a cluster of 16 UDB EEE partitions of four processors each for their data mining environment.  Each UDB partition needs to be approximately 15 rPerf.  Which of the following solutions would best fit their performance needs?()
    A

    p655 4-way nodes

    B

    p655 8-way nodes

    C

    p5-570 4-way nodes

    D

    p5-570 8-way nodes


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    A university researcher needs a large server with high numeric computing capacity to do computational fluid dynamics calculations.  The pSeries technical specialist has a recent pSeries and RS/6000 Performance Report.  Which of the following tables should be consulted to advise the customer concerning relative performance of various models?()
    A

    rPerf

    B

    ROLTP

    C

    SPECfp

    D

    SPECint


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    The writer says that the Post-it note was invented as a result of
    A

    a researcher’s own initiative.

    B

    research carried out by a group.

    C

    research originally done on another product.

    D

    a manager’s innovative idea.


    正确答案: A
    解析:
    文章第三段提到“…work on 5P projects for only 85% of their time; for the remaining 15% of time they are free to pursue ideas of their own…”,而Post-it note的发明正是来自这15%时间。也就是说Post-it note是研究人员个人主动开发出的。