A piece of food his airway and caused him to stop breathing. He was immediately rushed to thehospital.exhilarated
(A)retrieved
(B)obstructed
(C)intimidated
(D)
The doctor says to the patient that, with proper , he can expect to live a normal lifespan.
(A)judgment
(B)consideration
(C)treatment
(D)negotiation
英譯中:
Handshakes work in most situations. Asians may give a “wet fish handshake” and avoid
eye-contact, which Westerners take as a sign of weak character. A pat on the back or a
hug can be OK in Latin America, while in the Middle East people often stand close to
someone while talking. Arabs see this as a sign of friendliness, but to outsiders it can
appear aggressive. Whereas there is no rigid protocol governing the exchange of
business cards in the West, Asians regard them as indispensable.(20 分)
Taiwanese people now have another reason to drink tea. A recent study has shown that
drinking black tea suppresses the growth of cavity-causing microbes. Consuming the
beverage also helps reduce dental plaque, which is one of the main causes of
periodontal disease. This means that sipping a cup or two of black tea between meals
will help you fight cavities and reduce your chances of developing gum disease. But
you have to avoid adding sugar or honey to your drink if you’re serious about
improving your oral health.(20 分)
It is often said that is better than cure, so why not take some precautions in advance?process
(A)priority
(B)prevention
(C)prosperity
(D)
Looking back, the great dancer Martha Graham said, "Being inspired by a dance recital was one thing; making acareer choice, quite .
(A)ones
(B)the other
(C)another
(D)other
After six years’ outstanding military service, Jason received an honorable .deduction
(A)detachment
(B)disgrace
(C)discharge
(D)
The boss thinks that Irene is the most person to get the position as the manager.
(A)eventual
(B)doubtful
(C)inactive
(D)suitable
英文作文:(40 分)
Write an English essay of about 300 words to address the following:
In your opinion, what are the possible solutions to the problem concerning the care of old
people?
Experts of education are concerned about the negative influence on children and adolescents from thedaily of vulgar language, sex, and violence on TV shows.barrage
(A)contempt
(B)petition
(C)remedy
(D)
A series of gas explosions in Kaohsiung in 28 deaths and at least 280 people injured.
(A)clothed
(B)failed
(C)nailed
(D)resulted
Although this tastes fine, I don’t think it’s a good for real butter.reception
(A)compartment
(B)patron
(C)substitute
(D)請依下文回答第6 題至第10 題To best ensure successful completion of large-scale research projects and the appropriate adoption of technologiesthat arise from their projects, investigators working in global health must pay attention not only to science, but to theethical, social, and cultural issues that surround their work. These ethical, social, and cultural concerns havebecome increasingly important to the success of projects 6 in the developing world, including many of theprojects funded by Grand Challenges in Global Health. 7 Grand Challenges in Global Health investigators, Drs.Singer and Lavery and their colleagues are providing advisory services on ethical, social, and cultural issues related toresearch in the developing world. In addition, their project aims to help foster the successful and appropriate adoptionby communities 8 technologies that result from Grand Challenges in Global Health projects.|11250The project team’s advisory service for Grand Challenges investigators is in place, and work has begun to plan forthe successful adoption of technologies that may 9 from Grand Challenges in Global Health projects. The projectteam is currently conducting two global case studies, one on community engagement in research in the developingworld and 10 on commercialization of health products in low-resource settings. The case studies will identifygood practices in both areas.
The beauty of the island is ; it has a long beach with pure white sand and green palm trees.
(A)indifferent
(B)magnificent
(C)vocational
(D)available
The all-inclusive tours offered by the new travel agency .
(A)put on airs
(B)stay in touch
(C)cover all the bases
(D)fall to piecesI’ve had a lot of bad managers in my time: cold, aggressive, and incompetent. But I’d like to tell you about my lastboss. She was a very 7 sort of person—she never seemed uptight or nervous, and she always had time and asmile for everybody. She managed to create a pleasant, 8 atmosphere in the workplace—we all began to see eachother socially. She encouraged us all to be independent in our work—she didn’t keep telling us what to do—we werefree to work on our own. 9 , we were cooperative with each other: we worked well as a team and with her. Shewas not only experienced, efficient, and creative, 10 she communicated openly and created a great team spirit.
instead of
(A)in lieu of
(B)in need of
(C)in and out of
(D)
(A)demanding
(B)serious
(C)ambitious
(D)friendly
arouse
(A)arise
(B)raise
(C)have rai
(D)sed
(A)Nevertheless
(B)As a result
(C)In addition
(D)On the contrary
another
(A)one
(B)the other
(C)the others
(D)第11 題至第15 題為篇章結構題組,下列各題請依文意從四個選項中選出最合適者,答案選用不能重覆。The struggle to save the food supply from damage did not end with Silent Spring. 11 For example, in orderto increase the protein in cattle, people began to alter the diet of cows. Cows do not eat meat in their naturalsurroundings, but farm industries in many countries began feeding cows the ground-up parts of deadsheep. 12 According to them, this harmful process, begun by humans for greater profits, led to outbreaks of“mad cow disease” in the United States. This was a misfortune for the beef industry. Farmers also often feed largeamounts of antibiotics and hormones to their animals to make them stronger. 13 This is harmful to us all becausehuman diseases are becoming less responsive to antibiotics, and the hormones are not good for children. Recently, foodmanufacturers in the United States have developed a new method of irradiating food to kill bacteria. 14 Thedangers to the food supply depicted by the environmental movement have led many people to buy only naturalproducts from organic farms, which do not use chemical pesticides. 15 People in many countries are puzzledabout how to carry on the legacy of being responsible for the environment, which is the message of Silent Spring.
(A)but also
(B)furthermore
(C)moreover
(D)as well請依下文回答第11 題到第15 題Having a seven-day week seemed strange to sociologists since there was no corresponding geophysical event as therewas with the solar day or the lunar month. They tended to attribute it to our cultures and not to biology. However, otherorganisms also have a seven-day cycle, and a week is, after all, a quarter of a lunar circle. At the end of the FrenchRevolution, the revolutionary government wanted to establish a ten-day week, but the attempt failed to work. In the formerSoviet Union, the rulers also experimented with modifying the week by trying five-day and six-day weeks. Again, peoplerejected to change the length of their week. They seemed to need to have one day out of seven in order to rest their bodyclocks. Weekly rhythms show up most strongly during times of stress. For the body to fight off a cold, it needs about aweek. The symptoms of chicken pox show up about two weeks after the patient’s being exposed to disease. Health careworkers expect to see patients with pneumonia and malaria at greatest risk after one week of fighting these diseases. Bythese evidences, sociologists have had reasons to reconsider their previous ideas about the origin of the seven-day week.
Many scientists believe that some cows
(A)’ nervous systems were stricken by a sheep disease called scrapie.The need to maintain a prosperou
(B)s agricultural economy has led to many difficulties.Many people want to ban irradiated food because they are not sure such food is safe.
(C)But organic foods are expensive and hard to find.
(D)
According to the passage, what is the main reason behind the seven-day week for the sociologists?
(A)geophysical event
(B)cultures
(C)lunar cycle
(D)solar cycle
Many scientists believe that some cows
(A)’ nervous systems were stricken by a sheep disease called scrapie.These large doses accumulate in animal organs and are eaten by humans.
(B)Many people want to ban irradiated food because they are not sure such food is safe.
(C)The need to maintain a prosperous agricultural economy ha
(D)s led to many difficulties.
According to the passage, which of the following will be accepted by most people after all?
(A)five-day week
(B)seven-day week
(C)ten-day week
(D)six-day week
The animals
(A)enjoy taking antibiotics and hormones so much.Several
(B)scientists believe that some cows’ nervous systems were stricken by a sheep disease called scrapie.These large doses accumulate in animal organs and are eate
(C)n by humans.The
(D)y are indispensable for organic foods.
According to the passage, which of the following once experimented a ten-day week?
(A)the French Revolution
(B)Soviet Union
(C)the American Independence
(D)the Industrial Revolution
Many people think that food manufacturers in the United States
(A)are smart enough to develop a new methodof killing bacteria.The need to maintain a prosperous agricultural economy has led to many d
(B)ifficulties.But organic foods are expensive and hard to find.
(C)Many people want to ban irradiated food because they are not sure such food is safe.
(D)|11250
According to the passage, how long will it take for a patient who has chicken pox to show up the symptom?
(A)5 days
(B)7 days
(C)10 days
(D)14 days
The
(A)government forced people to buy only natural products.Luckily, all people agree to buy natural food
(B).But organic foods are expensive and hard to find.
(C)In fact, irradiating food is not so harmful.
(D)請依下文回答第16 題至第20 題Sit down in an airport main concourse today and you’ll catch a glimpse of what makes the modern world tick. Ona personal level, families reunite and adventures begin amid the swirl of our rapidly globalizing world. As fortechnology, one witnesses a marvel here as we conquer the skies.Denver International Airport (DIA), one of the largest (it covers 54 square miles) and fifth busiest airport in USA(in 2013, 25.5 million people passed under its unique tented roof), was the first U.S. airport to develop acomprehensive plan to manage environmental impact and the first to meet national and international sustainabilitystandards.DIA marked another first when it earned membership in the Environmental Protection Agency’s PerformanceTrack for excelling in protecting human health and the environment. Meanwhile, the Colorado Department of PublicHealth has recognized DIA for 10 years running as a Colorado Environmental Gold Leader for voluntarily goingbeyond compliance with state and federal regulations and for its continual environmental improvement.Throughout these efforts and accolades, natural gas vehicles have been a key component of sustainability effortsat the airport. Using compressed natural gas (CNG) in DIA’s 221 natural gas vehicles saves more than $135,000 eachyear in fuel costs. Based on the savings and overall success, the airport plans to add 25 to 50 more natural gas vehiclessoon.“We continue to invest in initiatives that reduce our carbon footprint and are financially viable, which assurestheir perpetuity even in times of economic downturn,” said airport CEO Kim Day. “Natural gas is a key part of ourenergy portfolio, as it provides a lower-cost and more environmentally friendly solution for many of our operations.”Airport leaders recognize that DIA is not alone in a growing reliance on natural gas– other members of this littlecity, passengers, also may rely on the clean energy to power their vehicles. DIA provides public access for compressednatural gas fueling at rental car fueling stations.One gallon equivalent of natural gas is a little less than one-half the cost of one gallon of diesel fuel, so the costsavings are significant. CNG burns much cleaner than other fuels. CNG vehicles are better for the environment. Users’experience with CNG buses has been positive and they would certainly consider using more of CNG technology forfuture vehicles at the airport.
According to the passage, which of the following is true?
(A)Cultures are not the only reason behind the seven-day week.
(B)The former Soviet Union experimented a eight-day week.
(C)It needs about two weeks for the body to fight off a cold.
(D)Most people would like to change the length of a week.請依下文回答第16 題到第20 題With spacecraft that can carry tourists into orbit and connect Paris to New York in less than two hours, the newheroes of space travel are not astronauts but daring captains of industry. This new breed of space pioneers are all usingprivate money to push the final frontier as government space programs fall away. Times have changed. Once the spacerace was led by the likes of the U.S. space agency NASA that put the first man on the moon in 1969.Today it is entrepreneur Elon Musk — the founder of Tesla electric cars and space exploration company Space—who wants to reach Mars in the 2020s. The furthest advanced — and most highly publicized — private space projectis led by Richard Branson, the British founder of the Virgin Group. His shuttle, SpaceShipTwo, will be launched athigh altitude from a weird-looking four-engined mother ship — which can carry two pilots and up to six passengers —before embarking on a three-hour suborbital flight.Branson and his sons will be the first passengers aboard the shuttle when it is expected to launch late 2014. Hiscompany Virgin Galactic was given the green light in May by the U.S. Federal Aviation Agency (FAA) to carrypassengers from a base in New Mexico, which is named “Spaceport America” — the stuff of science fiction.The US$250,000 price of a ticket has not deterred more than 600 people, including celebrities such as actorLeonardo Di Caprio, from booking their seats.
What does the “marvel” in Paragraph 1 refer to?A family reunion.
(A)The use of natural gas vehicles.
(B)A new airport concourse.
(C)The adventures made by travelers.
(D)
According to this passage, when is the first tourists-carrying shuttle scheduled to launch into space?
(A)Late 2014
(B)Early 2015
(C)Late 2015
(D)Early 2016
Which of the following is true about DIA?It’s the fifth largest airport in the U.S.
(A)It’s
(B)criticized for its poor environmental management.It provides CNG fueling at car
(C)rental stations.It has met national, but not international, sustainability standards.
(D)|11250
According to this passage, who intends to reach Mars in the 2020s?
(A)Richard Branson
(B)Leonardo Di Caprio
(C)Elon Musk
(D)NASA
What is Paragraph 3 mainly about?The developmental history of DIA.
(A)The major
(B)features in the construction of DIA.The roles of DIA and Colorado Department of Public Health.
(C)DIA’s excellence in environmental protection.
(D)
What does the expression “given the green light” mean in this passage?
(A)approved
(B)driven
(C)forbidden
(D)stopped
Which of the following is NOT true about CNG vehicles in DIA?More purchase of such vehicles will be made.
(A)The
(B)re are more than 200 natural gas vehicles in DIA.Each vehicle saves DIA $135,000 a year in fuel cost.
(C)They release less carbon than vehicles powered by diesel fuel.
(D)
According to this passage, who is more likely to lead in the space race in the future?
(A)FAA
(B)NASA
(C)secret society
(D)private entrepreneur
Which of the following words means “endless duration or existence”?perpetuity
(A)
(B)compliance
(C)initiativesaccolades
(D)請依下文回答第21 題至第25 題In the cooking show “MasterChef,” the audience remember the big smile that lit up Christine Ha’s face every timeshe impressed the judges with her bold flavors—and especially when her three-course meal of Vietnamese comfortfood won the “MasterChef ” title. What casual viewers may not have realized right away is that the amateur cook fromHouston, Texas, is blind. In 2003, Ha was diagnosed with a rare neurological condition that deteriorates the opticnerves and spinal cord. By 2007, Ha had lost most of her vision. But she had regained her love of reading, with helpfrom the National Library Service for the Blind and Physically Handicapped (NLS). “NLS reignited my love forliterature. It was what kept me sane when I went through the challenging treatment,” says Ha. “When I went throughsome of my worst health issues—complete paralysis from my neck down due to spinal inflammation, and completeblindness—all I could do was lie in bed and listen to NLS audio books.” NLS, part of the Library of Congress,oversees a free reading program for U.S. residents and citizens living abroad who are blind, have low vision, or cannothold a book because of a physical disability. NLS patrons may choose from tens of thousands of books and dozens ofmagazines in audio and braille—including dozens of cookbooks. NLS also loans the portable playback equipmentneeded to read its audio books. Computer-savvy patrons may access books online through the NLS Braille and AudioReading Download (BARD) service. Ha, who is pursuing a master of fine arts degree at the University of Houston,always has a book checked out from NLS. Recently she was reading Gail Caldwell’s Let’s Take the Long Way Home inbraille. And she is currently working on her “MasterChef ” cookbook, which is set for a spring 2013 release.
What does the expression “booking their seats” mean in this passage?
(A)finding a book on their seats
(B)securing their seats in advance
(C)selling their seats in advance
(D)writing a book on their seats
What kind of dishes won Christine Ha the “MasterChef ” title?American
(A)Houston
(B)Chinese
(C)Vietnamese
(D)
Neil Alden Armstrong, the first to walk on the Moon, is remembered by many with his famous line,“That’s one small step for a man, one giant leap for mankind.”
(A)astronaut
(B)architecture
(C)amateur
(D)applicant
Which of the following statements is true?Ha was born blind.
(A)Ha
(B)was completely blind by 2003.Ha
(C)’s spinal cord was damaged.Ha regained her vision in 2007.
(D)
This best-selling bag is made of leather, not artificial.
(A)genius
(B)genuine
(C)genetic
(D)greasyOnce upon a time I would go out with my friends, staying away until late. We usually had a good time, 23 care.We liked to make merry! Instead of working hard at my studies and helping my old parents, I would catch hold of everychance to have fun. Some of the things I did would make your hair 24 . From time to time I would climb the outsideof my student hall and shake hands with the statue that stood on top of the building. Then I would paint it 25 in orangepaint. My friends thought this was very funny. My teachers would warn me that I was doomed to failure if I did not workharder.
Which of the following items is NOT available at NLS?audio books
(A)magazines in
(B)braillevideo games
(C)playback equipments
(D)
(A)free from
(B)ending up in
(C)regardless of
(D)with respect to
According to the passage, which of the following people is NOT eligible for service provided by the NLS?A 40
(A)-year-old American man who has very low vision.A 6
(B)-year-old American boy living in Taiwan who is blind since birth.A single mom from Texas whose income is below average.
(C)A young woman from Houston who
(D)cannot hold a book because of some injury on her arm.
(A)stand by
(B)stand aside
(C)stand on end
(D)stand out
According to the passage, which of the following is Christine Ha’s status quo?She is now a student at the University of Houston.
(A)With improved vision, she is reading books from the university librar
(B)y.She is in the business of writing cook books for NLS.
(C)A film that is based on her true story is set for a spring 2013 release.
(D)
(A)to and fro
(B)the ins and outs
(C)in abundance
(D)from head to toeWhen we think of the people who make our life miserable by hacking into computers, or spreading malicious viruses,most of us imagine an unpopular teenage boy, brilliant but geeky, venting his frustrations from the safety of a suburbanbedroom.26 , these stereotypes are just that—stereotypes—according to Sarah Gordon, an expert in computer viruses andsecurity technology, and a Senior Research Fellow with Symantec Security Response. Since 1992, Gordon has studied the27 of virus writers. “A hacker or a virus writer is just as likely to be the guy next door to you,” she says, “or the kid at thecheckout line bagging your groceries. An average hacker is 28 someone dressed entirely in black and showing off anose ring; she may very well be a 50-year-old female.”The virus writer Gordon has come to know have 29 backgrounds: while predominantly male, some arefemale. Some are solidly academic, while others are athletic. Many have friendships with members of the oppositesex, good relationships with their parents and families; most are popular with their peers. You wouldn’t pick them outof a lineup as being the perpetrator.
(A)varied
(B)similar
(C)abnormal
(D)distinctive請依下文回答第30 題到第33 題Who knew that shoplifting could be a perfect Kodak moment? A thief and his partner seemed pretty competentwhen they went into a New York department store and took $2,000 worth of digital cameras. An abandoned shoppingtrolley full of empty camera boxes was found by shop assistants.Meanwhile, the shop’s surveillance tape appeared like it was going to be useless: the video showed the suspects, aman and a woman, but the captured images were far too grainy to accurately identify them. Then security officialsnoticed that, at one point, the tape showed the woman picking up a demonstration camera that was chained to acounter, and pointing it at her partner. No, she couldn’t have …Yes, she did.The shop’s manager called the photo center and asked about the camera. The guy operating the photo center saidthey were in luck: the camera had batteries and a disc. What’s more, it was hooked up to a printer. All they had to dowas press the print button to see exactly what the picture on the disc looked like.Out popped a clear color image of a balding man with a moustache, looking straight at the camera. The policecouldn’t ask for a better mug shot.Detective Sergeant Paul Dodorico said the couple “will be surprised. I’m sure they thought that there was nothingin the camera.”No sooner did police go public with the photograph than calls poured in, identifying the man as 36-year-oldJames Stissi. Less than three weeks later, detectives arrested Stissi at his home and charged him with robbery.
Which of the following is the best title for the story?
(A)Dumb Shoplifters
(B)A Shoplifter’s Partner
(C)It is necessary to buy a good camera
(D)How Detectives Usually Catch a Shoplifter
Which of the following statements is true about the shop’s surveillance tape?
(A)It was hooked up to a printer.
(B)It turned out to be of some use after all.
(C)It showed a clear color image of the suspects.
(D)It showed the man taking a picture of the woman.
What is a “mug shot”?
(A)A suspect
(B)A mask
(C)A camera
(D)A photograph
Which of the following statements is true?
(A)The shoplifters stole the demonstration camera.
(B)The shoplifters stole the digital cameras along with their boxes.
(C)James Stissi would regret having been taken a photo by his partner.
(D)The shoplifters checked to make sure there was nothing in the demonstration camera.Taxes are special fees charged by a government on the people who live in a country, state, or city. These fees helppay for public 34 like police, road and bridge repair, and public schools. In the United States, people have to paynational, income, and local taxes. Income tax is a tax 35 to how much a person earns in a year. There are bothfederal and state income taxes. These have to be paid every year by April 15th. There are special forms the InternalRevenue Service (IRS), the government 36 in charge of collecting taxes, asks people to fill out. There are taxcredits that people with low 37 , college students, and parents can get. These credits could mean actually gettingmoney back from the government. This money is called a tax refund. Anyone who works has to be taxed 38 of theimmigration status. Not paying income taxes could mean a fine or even jail time.
(A)cities
(B)states
(C)services
(D)governments
(A)changed
(B)paid
(C)applied
(D)decided
(A)household
(B)agency
(C)placement
(D)administer
(A)score
(B)image
(C)scope
(D)income
(A)revival
(B)relentless
(C)reciprocal
(D)regardlessThe education of "bilingual" students in the U.S. has always been closely 39 political, economic and socialconcerns. As a nation of immigrants, the U.S. was founded by colonists from multiple language backgrounds andnationalities. 40 early private schools were quickly established to teach colonial children, schools were generallysegregated by communities so that students studied in their native languages. As immigrant communities (mainly fromEurope) vied for political and economic power in the new world, language and nationality differences raised tensionsbetween neighbors. This in turn 41 calls for new immigrants to assimilate by learning the language and customsof earlier arrivals. For example, in colonial Pennsylvania, Benjamin Franklin complained that an influx of Germanspeaking immigrants would threaten the ability of the English in the settlement to maintain their language andgovernment. He was so worried about this prospect 42 he established one of the first groups of English languageschools for Germans with the hope of helping them to better assimilate 43 the English-speaking culture.
(A)tied to
(B)up to
(C)about to
(D)next to
(A)Because
(B)Since
(C)Unless
(D)While
(A)looked into
(B)led to
(C)bound to
(D)went into
(A)that
(B)and
(C)but
(D)because
(A)from
(B)for
(C)into
(D)with請依下文回答第44 題到第48 題Additive Manufacturing, or 3D printing, is known as it builds things through an additive process. It has a numberof advantages over traditional techniques. Instead of machining components from solid billets of raw metal, a processin which much of the metal may be cut away and thus wasted, only the material needed to create the part is used in 3Dprinting. The technology can also be used to make prototypes and items that are too complicated to be machined.Meanwhile, existing objects can be scanned, reverse engineered and then “reprinted.” Another major advantage is thatas there is no need to retool equipment each time product specifications are changed, 3D printers are ideal for customjobs and short production runs. All that needs to be done is to make alterations to the program that controls the printheads. With all those advantages, some experts believe that the technology will overturn many of the traditionaleconomics of production, as unit labor costs and traditional economics of scale are not applicable. The technologyunderlying 3D printing can be traced back to the 1970s, when the inkjet printer was invented. The mid-1980s saw theinkjet concept adapted to enable printing with materials other than ink. For years, however, the materials used to printobjects were not robust enough to create a working prototype. The end product did not have enough structuralintegrity to serve as anything more than a visual reference for engineers creating products with computer aided design(CAD). The big breakthrough of 3D printing took place in the early 2000s, when companies and researchers starteddeveloping stronger plastic blends and began to use laser technology that not only allowed the use of powdered metalsas the “ink,” but also improved the accuracy and efficiency of 3D printers. Today, the materials used to print objectsrange from numerous plastics and ceramics to metals and rubber-like substances. Somehow, the development of 3Dprinting is similar to that of photocopying. As with photocopiers, 3D printers are becoming more affordable, moreapplications for them are being found and more people are recognizing that the new technology can make thingseasier. The biggest ambition of those in the trade, therefore, is to see 3D printing become as commonplace asphotocopying. Hopefully, people might be able to purchase a digital file of a 3D object, push the “print” button, andenjoy their designer product soon afterward.
Which of the following defines the word “additive” in the first sentence?
(A)A substance that is added to food in order to improve its flavor.
(B)A factor that is added to other factors for better overall effects.
(C)A process that builds things by adding materials layer by layer.
(D)A way that builds tension by adding materials again and again.
When did the major breakthrough of 3D printing take place?
(A)In the 1970s.
(B)In the 1980s.
(C)In the 1990s.
(D)In the 2000s.
What can consumers do if 3D printing becomes as common as photocopying?
(A)They can alter the program that controls the print heads.
(B)They can develop stronger plastic blends and turn them into ink.
(C)They can buy a customized digital file of a 3D object and print it.
(D)They can improve the accuracy and efficiency of a 3D printer and print it.
Which is NOT an advantage of 3D printing technology?
(A)Only the material needed to create the part is used in 3D printing.
(B)Existing objects can be scanned and reprinted after re-engineering.
(C)It can be used to make prototypes for custom jobs and short production runs.
(D)It can be used to retool equipment when product specifications are changed.
What is this passage mainly about?
(A)3D printing can easily produce designer products.
(B)The benefits, history, and future prospects of 3D printing.
(C)How 3D printing will overturn traditional economics of production.
(D)How materials such as ceramics and metals can be used to 3D print objects.
After losing his Managing Director job in the company he had worked 15 years for, Alan experienced firsthandthat nobody was in his company.
(A)capable
(B)affordable
(C)indispensable
(D)comprehensible
The Johnsons to Japan for a 5-day vacation last week, but their trip was cancelled due to the terribleweather conditions.
(A)were going
(B)had gone
(C)did not go
(D)could not be going