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The systems of universities are very vulnerable because they are decentralized and accessible to many people.
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This is a very difficult mission because there will be many unexpected obstacles _____.
A. on the wayB. to the wayC. for the wayD. in the way
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Why does it take long for people to change their food?A． Because labs are not easily accessible to researchers.B． Because some people are reluctant to accept the new diet.C． Because food consumption is a culture of conservation.D． Because some scientists are against the growing lab meat.
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Is a decentralized, distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be alterred retroactively without the alteration of all subsequent blocks and the collusion ?of the network().A.Cloud serviceB.BlockchainC.Internet of thingsD.Artificial intellingence
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Wild dogs are dangerous predators because they ______.A. are very fierceB. hunt in large packsC. are very intelligentD. have unusually large litters
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What __ many is that US does little to help those people.
A.worryB.worryingC.worriesD.worried
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For many students,university is the place ______ they will be first exposed to different cultures and different people.
A.whichB.whereC.what
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Many western festivals are ___________ at the very beginning.
A、traditionalB、religiousC、original
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________ goods are of very high quality and intended to be bought by rich people.
A、DownmarketB、UpmarketC、ValuableD、Expensive
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To many people' s surprise,the twin sisters have _______ in common in personalities.A、very littleB、very fewC、quite manyD、quite much
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【With the 4G telecommunications systems now starting to be deployed,people are looking towards the development of 5th generation or 5G technology services.Although the deployment of any wireless or cellular system take years,development of the 5G technology systems is being investigated.The new 5G technologies will need to be chosen developed and perfected to enable timely and reliable deployment. The new 5th generation,5G technology for cellular systems will probably start to come to fruition around 2020. The current status of the 5G technology for cellular systems is very much in the early development stages.Many companies are looking into the technologies that could be used to become part of the system.In addition to this,a number of universities have set up 5G research units focused on developing the technologies for 5G. In addition, the standards bodies,particularly 3GPP are aware of the development but are not actively planing the 5G systems yet.Many of the technologies to be used for 5G will start to appear in the systems used for 4G and then as the new 5G cellular system starts to formulate in a more concrete manner,they will be incorporated into the new 5G cellular system. The major issue with 5G technology is that there is such an enormously wide variation in the requirements:super fast downloads to small data requirements for IoT than any one system will not be able to meet these needs.Accordingly a layer approach is likely to be adopted.As one commentator stated:5G is not just a mobile technology.It is ubiquitous access to high low data rate services.】 Based on the paragraph above,at present,5G technology for cellular systems （ ）, many of the technologies to be used for 5G （ ） in the systems used for 4G,the major issue facing with 5G technology is （ ）.A．has matured B．has setup its standards C．is very much in the early development stages D．is in use A．is being developed B．already appeared C．will not appear D．will start to appear A．super fast downloads B．small data requirements for IoT C．4G system has already satisfied these needs D．an enormously wide variation in the requirements
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Why do you think they had not a backup computer?A. Because it was easy down.B. Because it was very expensive.C. Because it was not advanced enough.D. Because it was not as big as the main computer.
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Don′t touch the corals with your finger，as they are very( )and easy to destroy！ A.feeble
B.fragile
C.vulnerable
D.frail
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Mary doesn't like going to parties and meeting new people. She is very（）A、shyB、socialC、outgoing
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A developer has created a web application that includes a servlet for each use case in the application.These servlets have become rather difficult to maintain because the request processing methods havebecome very large. There is also common processing code in many servlets because these use cases arevery similar. Which two design patterns can be used together to refactor and simplify this web application？（）A、ProxyB、View HelperC、Front ControllerD、Session FacadeE、Business DelegateF、Model-View-Controller
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A Company.com developer has created a web application that includes a servlet for each use case in the application. These servlets have become rather difficult to maintain because the request processing methods have become very large. There is also common processing code in many servlets because these use cases are very similar. Which two design patterns can be used together to refactor and simplify this web application？ （）A、 ProxyB、 View HelperC、 Front ControllerD、 Session FaçadeE、 Business DelegateF、 Model-View-Controller
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单选题Freshwater fish stocks are vulnerable or endangered because of ______.A
shortage of freshwater.B
pollution and changes in their living environment.C
fertilizer run-off.D
closed chemical works.
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填空题Recently many libraries are trying to provide the visitors with a new service: making their catalogs accessible via the Internet.____
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单选题Which of the following can be concluded from the passage?A
There were no cultural activities on campus before the period of growth mentioned in the passage.B
The opening of the John F. Kennedy Center was unwelcome.C
It was through the influence of universities that many cities tried to revive their cultural institutions in the inner city areas.D
Government’s aid and private donations to universities were reduced because of their political involvement.
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单选题A
They cause very few problems.B
They are easy to deal with.C
There aren’t many of them.D
They are friendly to people.
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单选题Mary doesn't like going to parties and meeting new people. She is very（）A
shyB
socialC
outgoing
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单选题A
Yes, because they are faster.B
No, because they cost more.C
Yes, because they are very good.D
No, because they don’t operate outside the United States.
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单选题Bob Dylan is very popular among young people. They regard him as more superior to other musicians.A
veryB
amongC
asD
more superior to
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