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The () stage air compressors are widely used on board the ship.
A . single
B . Ⅱ
C . Ⅲ
D . multiple
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Pipes made of plastic are now widely used in building as they are light and do not become ()in water.
A、ripe
B、instant
C、rotten 腐蚀的,恶臭的
D、mature
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Mariners proceeding across the main routes are()to do so at as wide an angle as practicable.
A . recommended
B . reported
C . applied
D . complied
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These piston rings are so badly worn that they must be ().
A . renewed
B . welded
C . machined
D . chromium-plated
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The engineers are so busy that they have no time for outdoor sports activities, _______ they have the interest.
A . A. wherever
B . B. whenever
C . C. even if
D . D. as if
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()are used widely in the operation of warehouse and distribution center andform the basic handling device for a number of selection system.
A . Cranes
B . Conveyors
C . Forklifttruck
D . Pallets
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They are vegetarians, so we should not buy any ________.
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Why is parallelism so widely used? It is because parallelism will make the sentence_______.
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They are all related ,so the members of an extended family are called relatives.
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_______, they have different goals, and so they use what you have made in different modes.
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5 ____ you have any English speaking friends? If so, who are they?
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根据回答,请选择问句。A. They are building a greenhouse.B. They are building a green house.--- Why are they so keen on green?
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The important components are tested for accuracy. If they are not qualified, they need to be repaired before they can be used.
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The words that can replace the underlined word in this sentence “WeChat is one of the most widely-used social apps in the world” are ( ).
popularized
well-known
prevalent
current
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The author thinks it helpful to give several examples of distributed systems in order to prove that the systems are widely used.
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Donkeys and camels are still widely used in some parts of the world as beasts of______.
A.cargo
B.freight
C.burden
D.lading
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The earthquake prediction devices developed by Ms.Shaw are being widely used in the world.
A. Right
B. Wrong
C. Not mentioned
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I would rather they do not stay here, for they are making so much trouble.。()
是
否
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Mobile Phones:Are They about to Transform. Our Lives? We love them so much that some of us sleep with them under the pillow,yet we are increasingly concerned that we cannot escape their electronic reach.We use them to convey our most intimate secrets,yet we worry that they are a threat to our privacy.We rely on them more than the lnternet to cope with modern life,yet many of us don’t believe advertisements saying we need more advanced services.
Sweeping aside the doubts that many people feel about the benefits of new third generation phones and fears over the health effects of phone masts(天线竿),a recent report clains that the long-term effects of new mobile technologies will be entirely positive so long as the public can be convinced to make use of them.Research about users of mobile phones reveals that the mobile has already moved beyond being a mere practical communications tool to become the backbone (支柱)of modern social life,from love affairs to friendship to work.One female teacher,32,told the researchers:“I love my phone.It’s my friend.”
The close relationship between user and phone is most pronounced among teenagers,the report says,who regard their mobiles as an expression of their identity.This is partly because mobiles are seen as being beyond the control of parents.But the researchers suggest that another reason may be that mobiles,especially taxt messaging,are seen as a way of overcoming shyness.“Texting is often used for apologies,to excuse lateness or to communicate other things that make us uncomfortable,”the report says,The impact of phones,however,has been local rather than global,supporting existing friendships and networks,rather than opening users to a new broader community.Even the language of texting in one area can be incomprehensible to anybody from another area.
Among the most important benefits of using mobile phones,the report claims,will be a vastly improved mobile infrastructure(基础设施),providing gains throughout the economy,and the provision of a more sophisticated location-based services for users.The report calls on govemment to put more effort into the delivery of services by bobile phone,with suggestions including public transport and traffic information and doctors’ text messages to remind patients of appointments.“I love that idea,”one user said in an interview.“It would mean I wouldn’t have to write a hundred messages to myself.”
There are many other possibilities.At a recent trade fair in Sweden,a mobile navigation product was launched.When the user enters a destination,a route is automatically downloaded to their mobile and presented by voice,pictures and maps as they drive.In future,these devices will also be able to plan around congestion(交通堵塞)and road works in real time.Third generation phones will also allow for remote monitoring of patients by doctors.In Britain scientists are developing a asthma(哮喘)management solution,using mobiles to detect early signs of an attack.
第11题:What does the writer suggest in the first paragraph about our attitudes to mobile phones?
A.We can’t live without them.
B.We are worried about using them so much.
C.We have contradictory feelings about them.
D.We need them more than anything else to deal with modem life.
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People are not satisfied with their lives so they spend lots of time on the Intemet.
<img src='https://img2.soutiyun.com/ask/uploadfile/2649001-2652000/b4c2ea89d91c55659d52052689bff115.gif' />
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In computing, passwords are commonly used to limit access to official users. Yet the widespread use of passwords has serious drawbacks. Office workers now have to remember an average of twelve system passwords. In theory they should use different passwords for each site, but in reality these would be impossible to remember, so many people use the same password for all.
An additional problem is that the majority use simple words such as "hello", or names of family members, instead of more secure combinations of numbers and letters, such as 6ANV76Y. This permits computer hackers to download dictionaries and quickly find the word that allows them access.
When system users forget their passwords there is extra expense in supplying new ones, while if people are forced to change passwords frequently they often write them down, making systems even less secure. Therefore, it is clear that the idea of passwords, which have been used as security devices for thousands of years, may need rethinking.
One possible alternative has been developed by the American firm Real User, and is called "passfaces". In order to access the system a worker has to select a series of photographs of faces from a randomly (随机地) generated sequence. If the pictures are selected in the correct order, access is granted. This concept depends on the human ability to recognize and remember a huge number of different faces, and the advantage is that such a sequence cannot be told to anyone or written down, so is more secure. It is claimed that the picture sequence, which used photographs of university students, is easier to remember than passwords, and it has now been adopted for the United States Senate.
What is the disadvantage of passwords as mentioned in Paragraph 1?
A.They do not ensure security.
B.They are difficult to remember.
C.They have to be changed frequently.
D.They limit computer accessibility.
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_____ are widely used in the current world.
A、The computers
B、Computers
C、A computer
D、An computer
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No reference book, perhaps no book of any kind except the Bible, is so widely used as "the dictionary". Even houses that have few books or none at all possess at least one dictionary; most business offices have dictionaries, and most typists keep a copy on their desks; at one time or another most girls and boys are required by their teachers to obtain and use a dictionary.
Admittedly, the dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation, and such a use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance, for it is often a matter of some concern to the person using the dictionary for such purpose that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not "well-bred", and has not been well educated.
Yet, despite this familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and little idea of how to use it profitably, or interpret it rightly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete, or in use only as slang, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years or so ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that this dictionary contained "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person that most people today are unaware of the great change that has taken place in the compilation of present-day dictionaries.
Similarly, the ordinary man invariably supposes that one dictionary is as good and authoritative as another, and, moreover, believes that "the dictionary" has absolute authority, and quotes it to clinch arguments. Although this is an advantage, in that the dictionary presents a definition the basic meaning of which can't be altered by the speaker, yet it could be accepted only if all dictionaries agreed on the particular point in question. But ultimately the authority of the dictionary rests only on the authority of the man who compiled it, and, however careful he may be, a dictionary-maker is fallible: reputable dictionaries may disagree in their judgments, and indeed different sections of the same dictionary may differ.
Which of the following statements is TRUE according to the passage?
A.The Bible is the most widely used reference book.
B.The dictionary is the most widely used reference book.
C.The dictionary is actually the more widely used book than the Bible.
D.The Bible is used as widely as the dictionary.
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Most of the widely used global security indexes are:
A、price-weighted.
B、equal-weighted.
C、Market capitalization-weighted.