Q: Write a multi-choice question for the following article: Article: There are various ways in which individual economic units can interact with one another. Three basic ways may be described as the market system, the administered system, and the traditional system. In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, _ goods such as automobiles, shoes, and pizzas are traded against each other. Obviously, finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modern market economy, goods and services are bought or sold for money. An alternative to the market system is administrative control by some agency over all transactions. This agency will issue commands as to how much of each good and service should be produced, exchanged, and consumed by each economic unit. Central planning may be one way of administering such an economy. The central plan, drawn up by the government, shows the amounts of each commodity produced by the various firms and allocated to different households for consumption. This is an example of complete planning of production, consumption, and exchange for the whole economy. In a traditional society, production and consumption patterns are governed by tradition; every person's place within the economic system is fixed by parentage, religion, and custom. Transactions take place on the basis of tradition, too. People belonging to a certain group or caste may have an obligation to care for other persons, provide them with food and shelter, care for their health, and provide for their education. Clearly, in a system where every decision is made on the basis of tradition alone, progress may be difficult to achieve. An inactive society may result.
A: Question: What is the main purpose of the passage?Options:A To outline contrasting types of economic systems.B To explain the science of economics.C To argue for the superiority of one economic system.D To compare barter and money-exchange markets.Answer:A

Q: Write a multi-choice question for the following article: Article: New research has revealed that which song drivers listen to can influence how safe they are on the roads.Among the top ten safest songs to drive to are Come Away With Me by Norah Jones,I Don't Want to Miss a Thing by Aerosmith and Tiny Dancer by Elton John.Each of the songs has an optimum tempo for safe driving,imitating the human heartbeat at around 60 to 80 beats per minute.The Scientist by Coldplay and Justin Timberlake's Cry Me a River also appeared in the top 10. The study,conducted at London Metropolitan University,also revealed the type of songs that cause motorists to drive dangerously.Unsurprisingly,music that is noisy increases a driver's heart rate,which can be deadly.Fast beats cause excitement that can lead people to concentrate more on the music than on the road and to speed up to match the beat of the song.Styles of music were also measured during the experiment and revealed differences between male and female drivers.Hiphop made a female driver drive far more aggressively,speeding up faster than male driver.The heavy metal music caused the fastest driving among males in the group while the dance music had the same effect among women.The male and female drivers who listened to the classical music drove the most irregularly. The experiment involved eight people driving 500 miles each using the confused.com MotorMate app,which driving behaviors through GPS technology.
A: Question: What's the main idea of the whole passage?Options:A Songs that drivers prefer to listen to on their way.B A study made by the confused.com MotorMate app.C What kind of songs the drivers should choose to listen to during driving.D Female drivers and male drives have different responses to the same music.Answer:C

Q: Write a multi-choice question for the following article: Article: What will power your house in the future? Nuclear, wind, or solar power? According to scientists at the Massachusetts Institute of Technology (MIT) in the US, it might be leaves -- but artificial ones. Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis . Now researchers have found a way to imitate this seemingly simple process. The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts . Similar to natural leaves, it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell, which uses those two materials to produce electricity, located either on top of a house or beside the house. Though the leaf is only about the shape of a poker card, scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. "One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology," said Nocera at a conference of the American Chemical Society. The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf, by contrast, is made of cheap materials, easy to use and highly stable. In laboratory studies, Nocera showed that an artificial leaf prototype could operate continuously for at least 45 hours without a drop in activity. The wonderful improvements come from Nocera's recent discovery of several powerful, new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now, the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides, the device can run in whatever water is available; that is, it doesn't need pure water. This is important for some countries that don't have access to pure water. With the goal to "make...
A: Question: The main idea of this passage is about _ .Options:A saving energyB a mixture of water power and solar energyC an invention copying photosynthesisD an introduction to the history of artificial leavesAnswer:C

Q: Write a multi-choice question for the following article: Article: For 75 years, three words have influenced the lives of many young Brits.They are:mirror, signal,manoeuvre . These are the processes all drivers should perform.Learners hoping to pass their driving test need to prove that they understand the importance of these actions before they can throw out their L-plates and head for the highway.In Britain,L-plates ale signs with a red "L" on them which you attach to a car to warm other drivers that you are a learner. This summer the British driving test celebrates its seventy-fifth birthday.It's often described as one of the most frightening tests we face. It is a painful experience that doesn't come very cheap nowadays.Taking the test in 1935 cost just 37. 5 pence;now candidates can expect to pay PS93. The test is also harder than ever.In 1935,the pass rate was 63%; now it's 43%.In recent years,the DSA--the organization that oversees the driving test -- has looked for ways to assess different aspects of what makes a good driver Now the DSA has announced that candidates will drive for ten minutes without detailed instructions from the examiner.DSA'S chief driving examiner Trevor Wedge said the aim was to measure a candidate's ability to drive safely while making decisions independently. However,drivers will not be punished for getting lost. "Candidates won't be failed for going off route," Mr. Wedge said. No doubt there will still be complaints. The BBC has learnt that in 2009 there were l,889 complaints about examiners,of which just 51 were supported. Complaints that were rejected included ''Candidate crashed during test--claims examiner distracted " and "Candidate says examiner took her on busy roads during rush hour,which was unfair". Someone else seemingly failed to understand the nature of an emergency stop when the complaint was filed that an emergency stop was conducted without warning.
A:
Question: According to the passage,the staff members of the DSA _ .Options:A teach how to driveB are mostly policemenC punish candidates who get lostD assess the performance of candidatesAnswer:D