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You have an Exchange Server 2010 organization.You need to determine why a remote SMTP server rejects e-mail sent from your organization.What should you do？（）
A . Review the application event logs.
B . Review the message tracking logs.
C . Set the Protocol logging level to Verbose on the Receive connectors and then review the protocol log files.
D . Set the Protocol logging level to Verbose on the Send connectors and then review the protocol log files.
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Why is it appropriate to use conditional label advertising when deploying MPLS? （）
A . to make CEF tables smaller
B . to enable label switching on the frame mode interface
C . to restrict MPLS availability to predefined time periods
D . to restrict label switching to a limited number of networks
E . to restrict end users from seeing the routers in the MPLS network
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In most cases, why do we believe that employee training and development is important?
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What are the things that people need to do on the 5th day of the 5th lunar month?
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When do we need to skim?
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Why do we mean that a successful and pleasant business travel depends on adequate preparations?
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In developing a new product, we need to do detailed market analysis of all ideas first, and test those ideas in the market.
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When preparing an official speech, the first thing we need to do is to find a good speech topic. _______
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Business is business. We should focus on the facts and do not need to consider the feelings of the receiver.
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Why do we often see pigs’ images in paper-cutting for window decoration?
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Which of the following statements is not mentioned as a reason why we procrastinate doing things?
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Tim Brown argues that regardless of our job title or industry, “we all need to think like designers” — but why is this the case?
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听力原文：W: Why do we have to finish this proposal tonight？ It's already 6 p. m. Can't we complete it tomorrow？
M: It has to go to the post office before twelve tonight. We must make sure that all the figures are correct.
Q: How many hours at most do they have to finish the proposal？
(18)
A．4 hours.
B．6 hours.
C．12 hours.
D．18 hours.
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Man: The front tire is flat, and the seat needs to be raised.Woman: Why not take it to Mr. Smith？Question: What kind of work does Mr. Smith probably do？
A．He fixes bicycles.
B．He raises sleep.
C．He sells chairs.
D．He's a gardener.
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When we ask ourselves what to do on Valentines Day, why is the answer very simple？
A.Because its always the best time to buy flowers for your love.
B.Because its always the best time to buy chocolate for your love.
C.Because its only natural that you buy chocolate and flowers as expressions of love.
D.Because its only suitable for all the people to buy something.
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______ we are not asked to fill the readers feedback, we have no need to do it.
A．So that
B．At that
C．Since that
D．Now that
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We need food because________.<p>1 we need to stay alive 2 we need to grow</p><p>3 we need to move around 4 we need the energy to do work</p>
A、<p>1 only</p>
B、<p>1 and 2 only</p>
C、<p>1,2 and 3 only</p>
D、<p>1, 2 3and 4</p>
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In the authors opinion, why do we search the stars or moon？
A．Because we have made up our mind to do so.
B．Because we want to fulfil our desire for knowledge.
C．Because we want to enjoy the ecstasy of achievement.
D．Because we cannot help ourselves.
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Woman: Professor Smith, I really need the credits to graduate this summer. Man: Here in this school: the credits are earned, not given. Question: What do we learn from the conversation？
A．The woman has to attend a summer course to graduate.
B．The man thinks the woman can earn the credits.
C．The woman is begging the man to let her pass the exam.
D．The woman is going to graduate from summer school.
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—Why don’t those children go to school They’re too young to work in the fctory. －－Mybe th
—Why don’t those children go to school They’re too young to work in the fctory. －－Mybe their pre—Why don’t those children go to school They’re too young to work in the fctory. --Mybe their prents cn’t_______their eduction.fford B．cost C．py D．spend
A．afford
B．cost
C．pay
D．spend
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In a world whereit seems we already have too much to do, and too many things to think about, itseems the last thing we need is something new that we have to learn.But use cases dos
A．impossible
B． possible
C． sensible
D． practical
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The most of the meeting was on what we needed to do when we made___ from the security issues to the challenging economic issues.（）
A．translation
B．transition
C．transaction
D．track
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We need to provide a convincing ______ as to why the rule should be changed. （）
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Mobile phones are the items that a lot of people are having today. However，do we really need to have a mobile phone by our side？
We could start with the advantages of mobile phones. There are many things that we could do with mobile phones. With the advancement of technology，more and more features are being added to the mobile phones which make them more useful. In addition to making calls，mobile phones also support a wide variety of other services such as text messaging，email，Internet access，business applications，gaming and photography. We can bring them everywhere，and can be reached by others anytime. They make the world smaller，bringing people together no matter where they are.
But we could have some risks when using our mobile phones. We may have accidents when we use them while driving. Some studies show that mobile phones can do harm to our bodies;and materials in mobile phones could damage our environment.
Since there are so many risks，why do we still have mobile phones？This is because these risks or disadvantages can be overcome. For example，while we are driving we can easily pull up our car if we really need to use the phone. Mobile phone manufacturers are reducing the radiation of mobile phones to avoid health risks.
Though there are both pros and cons of using mobile phones，we could easily see that there are more advantages than disadvantages. Moreover，mobile phones are becoming cheaper，which might be another reason why mobile phones are increasingly used today.
1. Which of the following functions is NOT mentioned in the passage？
A. Text messaging.
B. Camera.
C. GPS.
2. What risks might mobile phones cause？
A. Traffic accidents and health problems.
B. Environmental damage.
C. Both A and B.
3. What are mobile phone manufacturers doing to prevent mobile phone users from health risks？
A. They are reducing the radiation of mobile phones.
B. They are trying to persuade people to use mobile phones less.
C. They are developing new models of mobile phones.
4. Why do people still use mobile phones despite their disadvantages？
A. Because people don’t believe that mobile phones have any disadvantages.
B. Because the disadvantages of mobile phones can be avoided.
C. Because people cannot live without mobile phones.
5. According to the last paragraph，why are mobile phones increasingly being used today？
A. They are safer.
B. They have more functions.
C. They are becoming cheaper.
