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The heart of the computer is（）。
- A、CPU
- B、BUS
- C、CAI
- D、DIV
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Whatneedstobedonebeforeyoucanstarttheupgrade?()
A.OntheWindows95computer，replacetheCPUwithafastermodel.B.OntheWindows95computer，reformatthediskwithFAT32.C.OntheWindows98computer，reformatthediskwithFAT32.D.OntheWindows98computer，increasetheamountoffreediskspaceontheharddisk.E.OntheWindowsNTWorkstation4.0computer，replacetheCPUwithafastermodel.F.OntheWindowsNTWorkstation4.0computer，increasetheamountoffreediskspaceontheharddisk.
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YouhaveanExchangeServer2010organization.Thenetworkcontainsthecomputersshowninthefollowingtable.YouneedtoidentifythecomputersthatcanruntheExchangeServer2010managementtools.Whichtwocomputersshouldyouidentify？（）A.Computer1B.Computer2C.Computer3D.Computer4E.Computer5
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Napping to a Healthier Heart?1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP. Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heartdisease patient should affect that person’s treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in theJournal of the American Medical Association.5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelatedstudy earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children. But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in theUnited States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not takenaps.6 The researchers say napping may improve heart health by reducing stress.They say the researchsuggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.If a person has a high level of NT-proBNP_________.A: where fewer pepole die from heart problemB:whether they have the risk of heart attack,heart failure or stroke C:would probably have lower rates of heart diseaseD:how to test a person's NT-proBNP level in the blood by himselfE:his heart muscle would be under pressure in some wayF:that napping is of great benefit to women too
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Scientists Develop Ways of Detecting Heart AttackGerman researchers have___1___a new generation of defibrillators and earlywarning software aimed at offering heart patients greater protection___2___sudden death from cardiac arrest.In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases___3___by disruption to the heart's rhythm. Those most at risk are pa- tients who have___4___suffered a heart attack,and for years the use of defibrillators has proved useful in diagnosing___ 5___ disruptions to heart rhythms and correcting them automat-ically by intervening within seconds. These devices___6___ a range of functions,such as that of pacemaker.Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator ___7___of generating a six-channel electrocardiogram(ECG)within the body. This integrated system allows early diagnosis of___8___blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders the evaluation of ECG data___9___.The overwhelming___10___of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs.“Many of the current programs only ___11___ into account a linear correlation of the data. We are,however,making use___12___ a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system,”Hagen Knaf says,“___ 13___ changes in the heart beats over time can be monitored and indi- vidual variations in patients taken into account.”An old study of ECG data,based___14___ 600 patients who had suffered a subsequent heart attack,enabled the researchers to compare risks and to show___15___the new software evaluates the data considerably better.8._________A: chronicB: acuteC: recurrentD: persistent
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Napping to a Healthier Heart?1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP.Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart disease patient should affect that person's treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the Journal of the American Medical Association.5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children.But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take naps.6 The researchers say napping may improve heart health by reducing stress.They say the research suggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.According to some researchers,by measuring the levels of NT-proBNP in the blood people may know______.A:where fewer people die from heart problemB:whether they have the risk of heart attack,heart failure or strokeC:would probably have lower rates of heart diseaseD:how to test a person's NT-proBNP level in the blood by himselfE:his heart muscle would be under pressure in some wayF:that napping is of great benefit to women too
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Napping to a Healthier Heart?1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP.Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart disease patient should affect that person's treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the Journal of the American Medical Association.5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children.But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take naps.6 The researchers say napping may improve heart health by reducing stress.They say the research suggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.Paragraph 5______A:More Questions to Be AskedB:Older Males Have Higher Levels of NT-proBNPC:Development of a Simple But Important TestD:Evidence of Positive Relationship Between Napping and Heart DiseaseE:How to Control the Levels of NT-proBNPF:Effects of NT-proBNP on Heart Disease
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Scientists Develop Ways of Detecting Heart AttackGerman researchers have come up with a new generation of defibrillators（除颤器）and early-warning software aimed at offering heart patients greater________ (51)from sudden death from cardiac arrest（心脏 停搏）.In Germany alone,around 100,000 people die annually________(52)a result of cardiac arrest and many of these cases are caused by disruption to the heart's rhythm.Those most at________(53)are pa- tients who have already suffered a heart attack,and for years the use of defibrillators has proved useful in ________(54)life-threatening disruptions to heart rhythms and correcting them automatically by intervening within seconds.These devices________(55)on a range of functions,such as that of pacemaker（起 搏器）.Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator________(56 ) of generating a six-channel electrocardiogram ( EGG，心电图）within the body. This integrated system allows _________( 57 ) diagnosis of severe blood-flow problems and a pending（即将发 生的）heart attack. It will be implanted in _________( 58 ) for the first time this year. Meanwhile , research- ers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer soft- ware that________(59)the evaluation of EGG data more precise.The overwhelming majority of patients at risk will not have an implanted defibrillator and must for this ________(60)undergo regular EGGs."Many of the current programs only take into________(61)a line-ar correlation of the data. We are,however,making use in a non-linear process________(62)reveals the chaotic patterns of heart beats as an open and complex system,"Hagen Knaf says,"In this way changes in the heart________(63)over time can be monitored and individual variations in patients taken into ac-count."An old study of EGG data,based upon 600 patients who had________(64)a subsequent heart attack,enabled the researchers to compare risks and to show that the new software evaluates the________(65)considerably better._________(61)A:accountB:troubleC:confusionD:effort
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第一篇Human Heart can Make New CellsSolving a longstanding（为时甚久的）mystery, scientists have found that the human heart continues togenerate new cardiac（心脏的）cells throughout the life span, although the rate of new cell production slows with age.The finding,published in the April 3rd issue of Science,could open a new path for the treatment of heart diseases such as heart failure and heart attack,experts say."We find that the beating cells in the heart, cardiomyocytes（心肌细胞）,are renewed," said lead researcher Dr. Jonas Frisen,a professor of stem cell research at the Karolinska Institute in Stockholm,Sweden."It has previously not been known whether we were limited to the cardiomyocytes we were born with or whether they could be renewed,"he said."The process of renewing these cells changes over time,"Frisen added. In a 20-year-old,about 1percent of cardiomyocytes are exchanged each year , but the turnover（更替）rate decreases with age to only 0.45 percent by age 75."If we can understand how the generation of new cardiomyocytes is regulated,it may be potentially possible to develop pharmaceuticals（药物）that promote this process to stimulate regeneration after , for example,a heart attack,"Frisen said.That could lead to treatment that helps restore damaged hearts."A lot of people suffer from chronic heart failure,."noted co-author Dr. Ratan Bhardwaj,also from the Karolinska Institute."Chronic heart failure arises from heart cells dying," he said."With this finding,scientists are opening the door to potential therapies（疗法）,to having ourselves heal ourselves,"Bhardwaj said."Maybe one could devise a pharmaceutical agent that would make heart cells make new and more cells to overcome the problem they are facing."But barriers remain.According to Bhardwaj,scientists do not yet know how to increase heart cell production to a rate that would replace cells faster than they are dying off,especially in older patients with heart failure.In addition,the number of new cells the heart produces was estimated using healthy hearts一 whether the rate of cell turnover in diseased hearts is the same remains unknown.The human heart stops producing cardiac cells ______.A:when a person becomes oldB:as soon as a person gets sickC:immediately after a person is bornD:once a person dies
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第一篇Human Heart can Make New CellsSolving a longstanding（为时甚久的）mystery, scientists have found that the human heart continues togenerate new cardiac（心脏的）cells throughout the life span, although the rate of new cell production slows with age.The finding,published in the April 3rd issue of Science,could open a new path for the treatment of heart diseases such as heart failure and heart attack,experts say."We find that the beating cells in the heart, cardiomyocytes（心肌细胞）,are renewed," said lead researcher Dr. Jonas Frisen,a professor of stem cell research at the Karolinska Institute in Stockholm,Sweden."It has previously not been known whether we were limited to the cardiomyocytes we were born with or whether they could be renewed,"he said."The process of renewing these cells changes over time,"Frisen added. In a 20-year-old,about 1percent of cardiomyocytes are exchanged each year , but the turnover（更替）rate decreases with age to only 0.45 percent by age 75."If we can understand how the generation of new cardiomyocytes is regulated,it may be potentially possible to develop pharmaceuticals（药物）that promote this process to stimulate regeneration after , for example,a heart attack,"Frisen said.That could lead to treatment that helps restore damaged hearts."A lot of people suffer from chronic heart failure,."noted co-author Dr. Ratan Bhardwaj,also from the Karolinska Institute."Chronic heart failure arises from heart cells dying," he said."With this finding,scientists are opening the door to potential therapies（疗法）,to having ourselves heal ourselves,"Bhardwaj said."Maybe one could devise a pharmaceutical agent that would make heart cells make new and more cells to overcome the problem they are facing."But barriers remain.According to Bhardwaj,scientists do not yet know how to increase heart cell production to a rate that would replace cells faster than they are dying off,especially in older patients with heart failure.In addition,the number of new cells the heart produces was estimated using healthy hearts一 whether the rate of cell turnover in diseased hearts is the same remains unknown.Chronic heart failure is attributed to _________.A:the dying heart cellsB:the effect of pharmaceuticalsC:the weight of the patientD:the life span of a person
考题
Auto CAD中的CAD的英文全称是什么（）A、Computer Aided GraphicsB、Computer Aided PlanC、Computer Aided DesignD、Computer Aided Drawing
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CAD的英文全称是什么（）。A、Computer Aided DrawingB、Computer Aiede DesignC、Computer AiedeGraphicsD、Computer Aiede Plan
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You have a computer named Computer1 that runs Windows Vista and a computer named Computer2 thatruns Windows 7. You plan to migrate all profiles and user files from Computer1 to Computer2. You need toidentify how much space is required to complete the migration. What should you do?（）A、On Computer1 run Loadstate c:/store /nocompress.B、On Computer1 run Scanstate c:/store /nocompress /p.C、On Computer2 run Loadstate //computer1/store /nocompress.D、On Computer2 run Scanstate //computer1/store /nocompress /p.
考题
问答题Many have come to believe that Type A's are at a much higher risk of suffering heart attack or dying of heart disease than others.
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单选题That troubles me is that I can't learn all these English idioms by heart.A
ThatB
thatC
all theseD
by heart
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单选题You have a computer named Computer1 that runs Windows Vista and a computer named Computer2 thatruns Windows 7. You plan to migrate all profiles and user files from Computer1 to Computer2. You need toidentify how much space is required to complete the migration. What should you do?（）A
On Computer1 run Loadstate c:/store /nocompress.B
On Computer1 run Scanstate c:/store /nocompress /p.C
On Computer2 run Loadstate //computer1/store /nocompress.D
On Computer2 run Scanstate //computer1/store /nocompress /p.
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