2021英语考试选择题

Historical records during close-out are useful to _____ and _____ for future projects.

A.Predict trends, highlight problems.

B.Analyze successes, shortfalls.

C.Analyze strengths, document results.

D.Support litigation, defend claims.

E.Justify results, set standards.


正确答案:A
A


They fulfilled the task in()it took us.

A、two-thirds time

B、two-thirds times

C、two-thirds the time

D、the two-thirds time


参考答案:C


ABC Corp. has set up the Asset Category key flexfield. It has also set up a descriptive flexfield tostore vehicle information associated with the asset category "Vehicle." Identify two correctstatements.() (Choose two.)

A.The setting up of the descriptive flexfield is mandatory.

B.The Asset Category flexfield is owned by the Oracle Assets module.

C.The descriptive flexfield is associated with tables in the Oracle Assets module.

D.Only the Asset Category flexfield is associated with tables in the Oracle Assets module.


参考答案:B, C


Which of the following is the correct configuration for a RAID 5 array?()

A. A two disk set with one data strip

B. A three disk set with two data strips and a parity strip

C. A two disk set with two data strips

D. A four disk set with two sets of data strips


参考答案:B


共用题干
Better Control of TB Seen If a Faster Cure Is Found
The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis(结核病).Most times , the infection remains inactive(不活跃
的).But each year about eight million people develop active cases of TB,usually in their lungs. Two million people die of it.The disease has increased with the spread of AIDS and drug-resist-ant forms of tuberculosis.
Current treatments take at least six months.Patients have to take a combination of several antibiotic(抗生素)drugs daily. But many people stop as soon as they feel better. Doing that can lead to an infection(传染病)that resists treatment. Public health experts agree that a faster-act-ing cure for tuberculosis would be more effective.Now a study estimates just how effective it might be .A professor of international health at Harvard University led the study.Joshua Salomon says a shorter treatment program would likely mean not just more patients cured.It would also mean fe- wer infectious patients who can pass on their infection to others.
The researchers developed a mathematical(数学的)model to examine the effects of a two-month treatment plan.They tested the model with current TB conditions in Southeast Asia.The scientists found that a two-month treatment could prevent about twenty percent of new cases.And it might prevent about twenty-five percent of TB deaths.The model shows that these reductions would take place between two thousand twelve and two thousand thirty.That is,if a faster cure is developed and in wide use by two thousand twelve.
The World Health Organization developed the DOTS program in nineteen ninety.DOTS(短期直接观察治疗)is Directly Observed Treatment, Short-course. Health workers watch tubercu- losis patients take their daily pills to make sure they continue treatment.
Earlier this year,an international partnership of organizations announced a plan to expand the DOTS program.The ten-year plan also aims to finance research into new TB drugs.The four most common drugs used now are more than forty years old.The Global Alliance for TB Drug De- velopment(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses.

The long-term goal of the Global Alliance for TB Drug Development is a treatment that could work______.
A: in half a year
B: in two months
C: in ten doses
D:in ten days

答案:C
解析:
根据文章首段“The World Health Organization estimates that about one-third of all peo-ple are infected with bacteria that cause tuberculosis(结核病)…each year about eight mu- lion people develop active cases of TB… Two million people die of it.”可知,大约有三分之一的人会感染上结核病细菌,每年约有800万人在肺部转变为活性细菌,大约有二百万人死于结核病。故选C。
由第三段的最后两句“The model shows that these reductions would take place between 2020 and 2030. That is, if a faster cure is developed and in wide use by 2020”可知,一种又快又广的治疗方法大约在2020年至2030年,最快也得在2020年。故选B。
由最后一段“The four most common drugs used now are more than forty years old”可知,现在最常用的四种治疗结核病的药已有四十多年的历史了。所以要加大投资金额用于研发新药品。
根据题干,我们可以直接定位到第二段。由首句“Current treatments take at least six months”可知目前的治疗肺结核的疗程至少是六个月,故A项正确;根据Joshua Salomon 所说的话可知疗程较短的计划可能意味着更多病人被治好,也意味着将感染传递给别人的病人也会更少,故B、C两项正确。由“But many people stop as soon as they feel bet-ter. Doing that can lead to an infection(传染病)that resists treatment.”可知,结核病患者不能感觉好一点就停止吃药,这样容易发展成抗药性的传染性肺结核。故选D。
由文章最后一句话“The Global Alliance for TB Drug Development(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses.”可知全球结核病药物开发联盟的目标是研制出一种最好是喝10剂就能治愈结核的药物。 dose剂量,药量;一服(药),一剂(药)。故选C。


英语考试选择题U1A31.The mayor decided to _ his speech inorder to leave enough time for his audience to raise questions.A. constructB. condenseC. compareD. comprehend2.It was reported that there was a vehicle missingevery 20 seconds in the US. If the trends continue, experts predict annual vehicle thefts could _ two million.A. extendB. excelC. exceedD. expand3.Researchers put patients through a set ofpsychological tests to determine the negative consequences of sleep _.A. deficitB. deformC. depressD. distress4.Too much _ to dirty air can causepeople to suffer from allergies and diseases that will eventually affect peoples health.A. expansionB. exposureC. extensionD. exploration5.Moving forward even in the face of greatdifficulties has become my most important _ in my life since it has helped me accomplish something remarkable.A. assetB. assessmentC. assumeD. access6.The lawyer proclaimed they couldnt jump toconclusions because acceptable conclusions must be supported by _ facts and evidence.A. actualB. aggressiveC. adequateD. considerate7.To help the employees be more communicative,the company is offering workshops for those who may be professionally _ but socially awkward.A. compatibleB. comprehensiveC. componentD. competent8.Most parents, in fact, arent very helpful withthe problems that their sons and daughters have in _ to their college life.A.amountingB. committingC. resortingD. adjusting9.You can count how many students passed anexam, but psychological and emotional feelings cannot be _ measured.A.preciselyB. possiblyC. probablyD. preciously10.In short, participation in sports is extremely_ for college students not only physically but also emotionally and socially.A. beneficialB. complimentaryC. sufficientD. considerable1. B2. C3. A4. B5. A6. C7. D8. D9. A 10. AU1A71.Since we have invited all the other neighbors toour 25th wedding anniversary party, we _ invite the Browns too.A. feel obliged toB. are unwilling toC. appeal toD. turn to2.Most of the time, no one will care about naturaldisasters, and they wont _ avoiding disasters till one has really struck.A.be happy aboutB. be surprised aboutC.be serious aboutD. be blamed about3.When you _ a friend that you haventseen for a long time and have a good chat with him, you may feel very happy and delighted.A. run atB. run intoC. run afterD. run out of4.It is very important to _ facts andopinions in order to have a better understanding of what a reading passage is talking about.A.distinguish fromB. distinguish betweenC.distinguish ofD. distinguish with5. Though he was very excited about beingelected as the president of the student association, many extra responsibilities have been _ him ever since then.A. oblig、ed toB. equipped withC. given way toD. thrust upon6. The doctor, having no knowledge that I_ this particular drug, prescribed the medicine.A.was immune toB. was allergic toC.was interested inD. was adjusted to7. Its understandable that, without any support, a16-year-old can easily _ in a committee of people in their forties.A. get lostB. know betterC. get thrilledD. cheer up8. It is hoped that some new high-tech companieswill _ this s

共用题干
Better Control of TB Seen If a Faster Cure Is Found
The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis(结核病).Most times , the infection remains inactive(不活跃
的).But each year about eight million people develop active cases of TB,usually in their lungs. Two million people die of it.The disease has increased with the spread of AIDS and drug-resist-ant forms of tuberculosis.
Current treatments take at least six months.Patients have to take a combination of several antibiotic(抗生素)drugs daily. But many people stop as soon as they feel better. Doing that can lead to an infection(传染病)that resists treatment. Public health experts agree that a faster-act-ing cure for tuberculosis would be more effective.Now a study estimates just how effective it might be .A professor of international health at Harvard University led the study.Joshua Salomon says a shorter treatment program would likely mean not just more patients cured.It would also mean fe- wer infectious patients who can pass on their infection to others.
The researchers developed a mathematical(数学的)model to examine the effects of a two-month treatment plan.They tested the model with current TB conditions in Southeast Asia.The scientists found that a two-month treatment could prevent about twenty percent of new cases.And it might prevent about twenty-five percent of TB deaths.The model shows that these reductions would take place between two thousand twelve and two thousand thirty.That is,if a faster cure is developed and in wide use by two thousand twelve.
The World Health Organization developed the DOTS program in nineteen ninety.DOTS(短期直接观察治疗)is Directly Observed Treatment, Short-course. Health workers watch tubercu- losis patients take their daily pills to make sure they continue treatment.
Earlier this year,an international partnership of organizations announced a plan to expand the DOTS program.The ten-year plan also aims to finance research into new TB drugs.The four most common drugs used now are more than forty years old.The Global Alliance for TB Drug De- velopment(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses.

Which of the following statements is NOT right in Paragraph 2?
A: Current treatments of TB take at least six months.
B: Shorter treatment program would likely mean more patients cured,and fewer infectious patients.
C:The patients have to take a combination of several antibiotic drugs daily.
D: The patients should stop taking antibiotic drugs as soon as they feel better.

答案:D
解析:
根据文章首段“The World Health Organization estimates that about one-third of all peo-ple are infected with bacteria that cause tuberculosis(结核病)…each year about eight mu- lion people develop active cases of TB… Two million people die of it.”可知,大约有三分之一的人会感染上结核病细菌,每年约有800万人在肺部转变为活性细菌,大约有二百万人死于结核病。故选C。
由第三段的最后两句“The model shows that these reductions would take place between 2020 and 2030. That is, if a faster cure is developed and in wide use by 2020”可知,一种又快又广的治疗方法大约在2020年至2030年,最快也得在2020年。故选B。
由最后一段“The four most common drugs used now are more than forty years old”可知,现在最常用的四种治疗结核病的药已有四十多年的历史了。所以要加大投资金额用于研发新药品。
根据题干,我们可以直接定位到第二段。由首句“Current treatments take at least six months”可知目前的治疗肺结核的疗程至少是六个月,故A项正确;根据Joshua Salomon 所说的话可知疗程较短的计划可能意味着更多病人被治好,也意味着将感染传递给别人的病人也会更少,故B、C两项正确。由“But many people stop as soon as they feel bet-ter. Doing that can lead to an infection(传染病)that resists treatment.”可知,结核病患者不能感觉好一点就停止吃药,这样容易发展成抗药性的传染性肺结核。故选D。
由文章最后一句话“The Global Alliance for TB Drug Development(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses.”可知全球结核病药物开发联盟的目标是研制出一种最好是喝10剂就能治愈结核的药物。 dose剂量,药量;一服(药),一剂(药)。故选C。


In Paragraph 5, the author discusses that (  ).

A.if labor costs continue to grow, it would ripple through the economy
B.average wages grow 19 percent from 2005 to 2010
C.foreign enterprises should switch their manufacturing to cheaper sources
D.the wage rises over the past 2 decades could be offset by rising production

答案:D
解析:
答案A根据文章大意可排除,B应该是过去的五年时间,C文章中没有提到。


共用题干
第一篇

Forecasting Methods

There are several different methods that can be used to create a forecast. The method a forecaster chooses
depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of
difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.
The first of these methods is the persistence method,the simplest way of producing a forecast.The per-
sistence method assumes that the conditions at the time of the forecast will not change.For example,if it is
sunny and 87 degrees today,the persistence method predicts that it will be sunny and 87 degrees tomorrow.
If two inches of rain fell today,the persistence method would predict two inches of rain for tomorrow.
However,if weather conditions change significantly from day to day,the persistence method usually breaks
down and is not the best forecasting method to use.
The trends method involves determining the speed and direction of movement for fronts,high and low
pressure centers , and areas of clouds and precipitation(降水量).Using this information , the forecaster can
predict where he or she expects those features to be at some future time.For example,if a storm system is
1,000 miles west of your location and moving to the east at 250 miles per day,using the trends method you
would predict it arrive in your area in 4 days.The trends method works well when systems continue to move
at the same speed in the same direction for a long period of time.If they slow down,speed up,change intensi-
ty,or change directions,the trends forecast will probably not work as well.
The climatology(气候学)method is another simple way of producing a forecast. This method involves
averaging weather statistics accumulated over many years to make the forecast.For example,if you were using
the climatology method to predict the weather for New York City on July 4th,you would go through all the
weather data that has been recorded for every July 4th and take an average.The climatology method oniy
works well when the weather pattern is similar to that expected for the chosen time of year. If the pattern is
quite unusual for the given time of year,the climatology method will often fail.
The analog method is a slightly more complicated method of producing a forecast.It involves examining
today's forecast scenario(模式)and remembering a day in the past when the weather scenario looked very
similar(an analog).The forecaster would predict that the weather in this forecast will behave the same as ii
did in the past.The analog method is difficult to use because it is virtually impossible to find a predict ana-
log.Various weather features rarely align themselves in the same locations as they were in the previous time.
Even small differences between the current time and the analog can lead to very different results.

Which of the following factors is NOT mentioned in choosing a forecasting method?
A:Necessary amount of information.
B:Degree of difficulty involved in forecasting.
C:Practical knowledge of the forecaster.
D: Creativity of the forecaster.

答案:D
解析:
由文章第一段第二句话“The method a forecaster chooses depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.”可知答案。
由文章第二段最后一句话“However , if weather conditions change significantly from day to day,the persistence method usually breaks down and is not the best forecasting method to use.”可 知答案。
由第三段倒数第二句话“The trends method works well when systems continue to move at the same speed in the same direction for a long period of time.”可知答案。
由最后一段第二句话“It involves examining today ' s forecast scenario and remembering a day in the past when the weather scenario looked veiy similar ( an analog).”可知答案。
由第四段前两句“The climatology method is another simple way of producing a forecast.This method involves averaging weather statistics accumulated over many years to make the fore- cast.”和最后一段前两句“The analog method is a slightly more complicated method of producing a forecast.It involves examining today's forecast scenario and remembering a day in the past when the weather scenario looked very similar ( an analog).”可知气候学方法和类比法这两种天气预报法 都需要以往的天气方面的数据。


共用题干
第一篇

Forecasting Methods

There are several different methods that can be used to create a forecast. The method a forecaster chooses
depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of
difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.
The first of these methods is the persistence method,the simplest way of producing a forecast.The per-
sistence method assumes that the conditions at the time of the forecast will not change.For example,if it is
sunny and 87 degrees today,the persistence method predicts that it will be sunny and 87 degrees tomorrow.
If two inches of rain fell today,the persistence method would predict two inches of rain for tomorrow.
However,if weather conditions change significantly from day to day,the persistence method usually breaks
down and is not the best forecasting method to use.
The trends method involves determining the speed and direction of movement for fronts,high and low
pressure centers , and areas of clouds and precipitation(降水量).Using this information , the forecaster can
predict where he or she expects those features to be at some future time.For example,if a storm system is
1,000 miles west of your location and moving to the east at 250 miles per day,using the trends method you
would predict it arrive in your area in 4 days.The trends method works well when systems continue to move
at the same speed in the same direction for a long period of time.If they slow down,speed up,change intensi-
ty,or change directions,the trends forecast will probably not work as well.
The climatology(气候学)method is another simple way of producing a forecast. This method involves
averaging weather statistics accumulated over many years to make the forecast.For example,if you were using
the climatology method to predict the weather for New York City on July 4th,you would go through all the
weather data that has been recorded for every July 4th and take an average.The climatology method oniy
works well when the weather pattern is similar to that expected for the chosen time of year. If the pattern is
quite unusual for the given time of year,the climatology method will often fail.
The analog method is a slightly more complicated method of producing a forecast.It involves examining
today's forecast scenario(模式)and remembering a day in the past when the weather scenario looked very
similar(an analog).The forecaster would predict that the weather in this forecast will behave the same as ii
did in the past.The analog method is difficult to use because it is virtually impossible to find a predict ana-
log.Various weather features rarely align themselves in the same locations as they were in the previous time.
Even small differences between the current time and the analog can lead to very different results.

The persistence method fails to work well when_________.
A:it is rainy
B:it is sunny
C:weather conditions change greatly
D:weather conditions stay stable

答案:C
解析:
由文章第一段第二句话“The method a forecaster chooses depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.”可知答案。
由文章第二段最后一句话“However , if weather conditions change significantly from day to day,the persistence method usually breaks down and is not the best forecasting method to use.”可 知答案。
由第三段倒数第二句话“The trends method works well when systems continue to move at the same speed in the same direction for a long period of time.”可知答案。
由最后一段第二句话“It involves examining today ' s forecast scenario and remembering a day in the past when the weather scenario looked veiy similar ( an analog).”可知答案。
由第四段前两句“The climatology method is another simple way of producing a forecast.This method involves averaging weather statistics accumulated over many years to make the fore- cast.”和最后一段前两句“The analog method is a slightly more complicated method of producing a forecast.It involves examining today's forecast scenario and remembering a day in the past when the weather scenario looked very similar ( an analog).”可知气候学方法和类比法这两种天气预报法 都需要以往的天气方面的数据。


共用题干
第一篇

Forecasting Methods

There are several different methods that can be used to create a forecast. The method a forecaster chooses
depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of
difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.
The first of these methods is the persistence method,the simplest way of producing a forecast.The per-
sistence method assumes that the conditions at the time of the forecast will not change.For example,if it is
sunny and 87 degrees today,the persistence method predicts that it will be sunny and 87 degrees tomorrow.
If two inches of rain fell today,the persistence method would predict two inches of rain for tomorrow.
However,if weather conditions change significantly from day to day,the persistence method usually breaks
down and is not the best forecasting method to use.
The trends method involves determining the speed and direction of movement for fronts,high and low
pressure centers , and areas of clouds and precipitation(降水量).Using this information , the forecaster can
predict where he or she expects those features to be at some future time.For example,if a storm system is
1,000 miles west of your location and moving to the east at 250 miles per day,using the trends method you
would predict it arrive in your area in 4 days.The trends method works well when systems continue to move
at the same speed in the same direction for a long period of time.If they slow down,speed up,change intensi-
ty,or change directions,the trends forecast will probably not work as well.
The climatology(气候学)method is another simple way of producing a forecast. This method involves
averaging weather statistics accumulated over many years to make the forecast.For example,if you were using
the climatology method to predict the weather for New York City on July 4th,you would go through all the
weather data that has been recorded for every July 4th and take an average.The climatology method oniy
works well when the weather pattern is similar to that expected for the chosen time of year. If the pattern is
quite unusual for the given time of year,the climatology method will often fail.
The analog method is a slightly more complicated method of producing a forecast.It involves examining
today's forecast scenario(模式)and remembering a day in the past when the weather scenario looked very
similar(an analog).The forecaster would predict that the weather in this forecast will behave the same as ii
did in the past.The analog method is difficult to use because it is virtually impossible to find a predict ana-
log.Various weather features rarely align themselves in the same locations as they were in the previous time.
Even small differences between the current time and the analog can lead to very different results.

The trends method works well when_________.
A:weather features are defined well enough
B:predictions on precipitation are accurate
C:weather features are constant for a long period of time
D:the speed and direction of movement are predicable

答案:C
解析:
由文章第一段第二句话“The method a forecaster chooses depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.”可知答案。
由文章第二段最后一句话“However , if weather conditions change significantly from day to day,the persistence method usually breaks down and is not the best forecasting method to use.”可 知答案。
由第三段倒数第二句话“The trends method works well when systems continue to move at the same speed in the same direction for a long period of time.”可知答案。
由最后一段第二句话“It involves examining today ' s forecast scenario and remembering a day in the past when the weather scenario looked veiy similar ( an analog).”可知答案。
由第四段前两句“The climatology method is another simple way of producing a forecast.This method involves averaging weather statistics accumulated over many years to make the fore- cast.”和最后一段前两句“The analog method is a slightly more complicated method of producing a forecast.It involves examining today's forecast scenario and remembering a day in the past when the weather scenario looked very similar ( an analog).”可知气候学方法和类比法这两种天气预报法 都需要以往的天气方面的数据。

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考题 You are implementing a Windows Communication Foundation (WCF) client application that consumes the ICatalog and lCatalog2 service interfaces.You need to ensure that the client discovers services implementing these interfaces. The services may already be online or may come online within a 30 second time limit. How should you use WCF Discovery to accomplish this?()A、Create one FindCriteria object for each interface and set the Duration of each FindCriteria to 30 seconds. Call the FindAsync method of the DiscoveryClient class twice, one time for each of the FindCriteria objects, to search for the services.B、Create one FindCriteria object for each interface and set the Duration of each FindCnteria to two seconds. Create a loop that calls the Find method of the DiscoveryClient class to search for the services. Within each loop iteration, call the Find method of the DiscoveryClient class once for each of the FindCriteria objects. Run the loop until a service is found or 30 seconds pass.C、Create a single FindCriteria object and add both interfaces to its ContractTypeNames collection. Set the criteria's Duration to two seconds. Create a loop that calls the Find method of the DiscoveryClient class to search for the services. Within each loop iteration, call the Find method of the DiscoveryClient class to search for the services Run the loop until a service is found or 30 seconds pass.D、Create a single FindCritera object and add both interfaces to the ContractTypeNames collection. Set the Duration to 30 seconds and use the FindAsync method of the DiscoveryClient class to search for the services.正确答案:B

考题 Which two of these statements best describe fast secure roaming for the wireless core feature set using autonomous access points? (Choose two.) ()A、 It is compatible with all wireless clients.B、 It reduces roaming latency through reduced client RF channel scanning enhancements.C、 It reduces roaming latency to targeted times of less than 75ms.D、 Roaming occurs without reauthentication through a centralized RADIUS server.E、 It is enabled through WLSE deployment.正确答案:B,D

考题 共用题干 第一篇Forecasting MethodsThere are several different methods that can be used to create a forecast. The method a forecaster chooses depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.The first of these methods is the persistence method,the simplest way of producing a forecast.The per- sistence method assumes that the conditions at the time of the forecast will not change.For example,if it is sunny and 87 degrees today,the persistence method predicts that it will be sunny and 87 degrees tomorrow. If two inches of rain fell today,the persistence method would predict two inches of rain for tomorrow. However,if weather conditions change significantly from day to day,the persistence method usually breaks down and is not the best forecasting method to use.The trends method involves determining the speed and direction of movement for fronts,high and low pressure centers , and areas of clouds and precipitation(降水量).Using this information , the forecaster can predict where he or she expects those features to be at some future time.For example,if a storm system is 1,000 miles west of your location and moving to the east at 250 miles per day,using the trends method you would predict it arrive in your area in 4 days.The trends method works well when systems continue to move at the same speed in the same direction for a long period of time.If they slow down,speed up,change intensi- ty,or change directions,the trends forecast will probably not work as well.The climatology(气候学)method is another simple way of producing a forecast. This method involves averaging weather statistics accumulated over many years to make the forecast.For example,if you were using the climatology method to predict the weather for New York City on July 4th,you would go through all the weather data that has been recorded for every July 4th and take an average.The climatology method oniy works well when the weather pattern is similar to that expected for the chosen time of year. If the pattern is quite unusual for the given time of year,the climatology method will often fail.The analog method is a slightly more complicated method of producing a forecast.It involves examining today's forecast scenario(模式)and remembering a day in the past when the weather scenario looked very similar(an analog).The forecaster would predict that the weather in this forecast will behave the same as ii did in the past.The analog method is difficult to use because it is virtually impossible to find a predict ana- log.Various weather features rarely align themselves in the same locations as they were in the previous time. Even small differences between the current time and the analog can lead to very different results.Historical weather data are necessary in_________.A:the climatology method and the analog methodB:the persistence method and the trends methodC:the trends method and the climatology methodD:the persistence method and the analog method答案:A解析:由文章第一段第二句话“The method a forecaster chooses depends upon the experience of the forecaster,the amount of information available to the forecaster,the level of difficulty that the forecast situation presents,and the degree of accuracy or confidence needed in the forecast.”可知答案。由文章第二段最后一句话“However , if weather conditions change significantly from day to day,the persistence method usually breaks down and is not the best forecasting method to use.”可 知答案。由第三段倒数第二句话“The trends method works well when systems continue to move at the same speed in the same direction for a long period of time.”可知答案。由最后一段第二句话“It involves examining today ' s forecast scenario and remembering a day in the past when the weather scenario looked veiy similar ( an analog).”可知答案。由第四段前两句“The climatology method is another simple way of producing a forecast.This method involves averaging weather statistics accumulated over many years to make the fore- cast.”和最后一段前两句“The analog method is a slightly more complicated method of producing a forecast.It involves examining today's forecast scenario and remembering a day in the past when the weather scenario looked very similar ( an analog).”可知气候学方法和类比法这两种天气预报法 都需要以往的天气方面的数据。

考题 We had a long way to go so we decided to__ early.A.set on B.put on C.set off D.put off答案:C解析:

考题 Which of the following is the correct configuration for a RAID 5 array?()A、A two disk set with one data stripB、A three disk set with two data strips and a parity stripC、A two disk set with two data stripsD、A four disk set with two sets of data strips正确答案:B

考题 多选题Which two of these statements best describe fast secure roaming for the wireless core feature set using autonomous access points? (Choose two.) ()AIt is compatible with all wireless clients.BIt reduces roaming latency through reduced client RF channel scanning enhancements.CIt reduces roaming latency to targeted times of less than 75ms.DRoaming occurs without reauthentication through a centralized RADIUS server.EIt is enabled through WLSE deployment.正确答案:A,C解析:暂无解析

考题 A datacenter director implements a new security measure in response to multiple equipment thefts from the datacenter. The new security measure requires people entering or leaving the data center to go through an extra secure area. Once entering the area people must present two forms of authentication to leave. Which of the following security measures does this describe?()A、MantrapB、RFID cardsC、Defense in depthD、Biometrics正确答案:A