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The problem is（）by pollution.
Acaused
Bbecause
Cdue
Dbecause of
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根据短文内容，完成下面的句子。The altitude is so _______ that there is no atmosphere which protects the life on the earth. At the same time, the astronauts usually meet with some problems, such as ________ problem, radiation problem, breathing problem, heat problem and so on.
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If the () of carbon dioxide in the atmosphere is increased as a result of air pollution.
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What is the best title for this passage?A. Six Stages for Repairing Sam's Bicycle.B. Possible Steps of Problem-solving.C. Necessities of Problem Analysis.D. Importance of Analyzing a Problem.
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All known techniques for handling complex problems successfully seem to fall into one of the three classes: subdividing the problem(51), ignoring irrelevant detail in a safe way(52), and having an independent agent(53)the internal consistency(contextual checking). The first two provide guidelines for solving the problem, the third serves to provide early warnings. A good programming language supports all three.In subdividing problem, some of the subproblems may be similar to the(54) problem. It leads us to a(55)solution. This(55)solution is viable provided each of the subproblems is easier to solve than the original problem.A．abrogationB．abstractionC．compositionD．contraction
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第二篇Solving a problem can be broken down into several steps.First,the problem must be identified correctly.Psychologists refer to this step as problem representation.For many problems,a figuring out which information is relevant and which is irrelevant can be difficult and can interfere with arriving at a good solution.Clearly,a problem can be solved,it must be obvious what the problem is; however,this is not as easy as it might seem.One obstacle to efficient problem representation is functional fixedness,that is,allowing preconceived notions and even prejudices to color the facts. Most people tend to see objects and events in certain fixed ways,and by being inflexible in viewing the problem,they may be unable to notice the tools for the solution.Once the problem is identified accurately,however,the second step consists of considering the alternatives for a solution.A common way to evaluate alternatives is to write them down and then make a list of advantages and disadvantages for each solution. Here again,people may be limited by prior experiences.Often people adopt mental sets that lead them to the same problem-solving strategies that were successful for problems in the past. Although that can be helpful most of the time, sometimes a new situation requires a different strategy. In that case,the mental set must be abandoned,and new alternatives must be explored.This can be a difficult adjustment for some people.After the alternatives have been compared,a strategy must be selected from among them.One way to avoid becoming stuck in the options is to try the best option with a view to abandoning it for another if the results are unfavorable.This attitude allows many people to move on expeditiously to the next step—action.The strategy selected must be implemented and tested.If it solves the problem,no further action is necessary,but if not,then an unsuccessful solution may actually lead to a more successful option.If the solution is still not apparent,then the cycle begins again,starting with problem identification.By continuing to review the problem and repeat the problem-solving steps,the solution can be improved upon and refined.If we want to solve a problem,the first step is to________.A:know what the problem is B:compare the alternativesC:use prior experiences D:select a strategy
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根据以下材料，回答
People do not analyze every problem theymeet. Sometimes they try to remember a solution from the last time they had asimilar problem. They often accept the opinions or ideas of other people. Othertimes they begin to act without thinking; they try to find a solution by trialand error. However, when all these methods fail, the person with a problem hasto start analyzing. There are six stages in analyzing a problem.
First the person must recognize that thereis a problem. For example, Sam′s bicycle is broken, and he cannot ride it toclass as he usually does. Sam must see that there is a problem with hisbicycle.
Next the thinker must define the problem.Before Sam can repair his bicycle, he must find out the reason why it does notwork. For instance, he must determine if the problem is with the gears, thebrakes, or the frame. He must make his problem more specific.
Now the person must look for informationthat will make the problem clearer and lead to possible solutions. Forinstance, suppose Sam decided that his bike does not work because there is somethingwrong with the gear wheels. At this time, he can look in his bicycle repairbook and read about gears. He can talk to his friends at the bike shop. He canlook at his gears carefully.
After studying the problem, the personshould have several suggestions for a possible solution. Take Sam as anillustration. His suggestions might be: put oil on the gear wheels; buy newgear wheels and replace the old ones; tighten or loosen the gear wheels.Eventually one suggestion seems to be the solution to the problem. Sometimesthe final idea comes very suddenly because the thinker suddenly sees somethingnew or sees something in a new way. Sam, for example, suddenly sees that thereis a piece of chewing gum between the gear wheels. He immediately realizes thesolution to his problem: he must clean the gear wheels.
Finally the solution is tested. Sam cleansthe gear wheels and finds that afterwards his bicycle works perfectly. Inshort, he has solved the problem.
What is the best title for thispassage?A.Six Stages for Repairing Sam' s Bicycle
B.Possible Ways to Problem-Solving
C.Necessities of Problem Analysis
D.Suggestions for Analyzing a Problem
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单选题A technician is troubleshooting a host connectivity problem. The host is unable to ping a server connected to Switch_A. Based on the results of the testing, what could be the problem（）。A
A remote physical layer problem exists.B
The host NIC is not functioning.C
TCP/IP has not been correctly installed on the host.D
A local physical layer problem exists.
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单选题– What's the problem, Harry?-（）A
I can’t remember where I left my glassesB
No problem at allC
Thank you for asking me about it
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单选题A customer indicates that a system is experiencing printing problems. After checking the system, and successfully printing, no problem has been found. Which of the following procedures should be performed next to further clarify the problem?（）A
Reboot the system.B
Check the file system sizes.C
Have the customer repeat the task to recreate the problem.D
Inform the customer that no problems were found， and to call back if the problem reoccurs.
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单选题______, the new electronic device they designed is now in regular operation.A
With the solved problemB
With this problem being solvedC
With the problem solvedD
With this problem to solve
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单选题The last step in resolving an end user ticket should be which of the following?（）A
Create an incident recordB
Verify the problem is resolvedC
Document the solutionD
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