Read the following article and select the best answer. Article: The human brain contains ten thousand million cells and each of these may have a thousand connections. Such enormous numbers used to discourage us and cause us to dismiss the possibility of making a machine with human-like ability, but now that we have grown used to moving forward at such a pace we can be less sure. Quite soon, in only 10 or 20 years perhaps, we will be able to assemble a machine as complex as the human brain, and if we can we will. It may then take us a long time to render it intelligent by loading in the right software or by altering the architecture but that two will happen. I think it is certain that in decades, not centuries, machines of silicon will arise first to rival and then exceed their human ancestors. Once they exceed us they will be capable of their own design. In a real sense they will be able to reproduce themselves. Silicon will have ended carbon's long control. And we will no longer be able to claim ourselves to be the finest intelligence in the known universe. As the intelligence of robots increased to match that of humans and as their cost declines through economies of scale we may use them to expand our frontiers, first on earth through their ability to withstand environments, harmful to ourselves. Thus, deserts may bloom and the ocean beds be mined. Further ahead, by a combination of the great wealth this new age will bring and the technology it will provide, the construction of a vast, man-created world in space, home to thousands of millions of people, will be within our power. Question: In what way can we make a machine intelligent? - By making it work in such environments as deserts, oceans or space - By working hard for 10 or 20 years - By either programming it or changing its structure - By reproducing it
By either programming it or changing its structure

Read the following article and select the best answer. Article: Remembering names is an important social skill . Here are some ways to improve it. Remember and repeat in conversation . When you hear a person's name , repeat it. Immediately say it to yourself several times without moving your lips . you could also repeat the name in a way that sounds natural. Ask the other person to recite and repeat . You can let other people help you remember their names. After you've been introduced to someone , ask that person to spell the name and pronounce it correctly for you . Most people will be glad by the effort that you're making to learn their names. Admit that you don't know .You may tell them that you can't remember someone's name . Most of them will feel glad if you say, "I'm working to remember your names better . Yours is right on the tip of my tongue . What is it again?" Use associations . Link each person yon meet with one thing you find interesting or unusual. For example, you can remember in this way : "Vicki Cheng ----tall, black hair." To remember their names , you can write them on a small card as soon as possible. Limit the number of new names you learn at one time. When meeting a group of people, you'd better remember just two or three names. Free yourself from remembering every one. Few of the people expect you to remember their names. Another way is to limit yourself to learning just first names. Last names can come later. Go early . Consider going early to meetings , parties and classes . Sometimes just a few people show up on time . There're fewer names for you to remember. And as more people arrive , you can hear them being introduced to others . Question: When you meet a group of people, it is better to remember _ . - all their names - a few names first - just their last names - as many names as possible
a few names first

Q: Read the following article and select the best answer. Article: The sharp drop in world oil prices has led oil companies in the United States to dismiss thousands of workers. Some companies have also delay new oil drilling and exploration projects. The drop in oil prices has also affected small service companies and even stores that do business with oil companies in big producer states like Texas. But the drop in oil prices has not been bad for everyone. Oil platform workers are often called roughnecks. In Texas, many roughnecks have lost their jobs because of the drop in oil prices. The effect of falling prices has been worse in states like Alaska and North Dakota. That is because production costs are higher there than they are in the Eagle Ford area of south-central Texas. Adam Perdue is an economist at the University of Houston's Institute for Regional Forecasting. He has been studying the effect of falling oil prices in Texas. He says oil company exploration and production budgets are being cut between 10 and 50 percent, with most of them being cut by a third. He thinks the lower spending will affect the local economy. The economic slowdown will affect companies that manufacture pipes and other equipment for oil exploration and production. It will also have an effect on trucking companies that supply sand and chemicals, and other small businesses that serve the energy industry. But low oil prices are good for chemical companies. They use hydrocarbons found in oil to make fertilizer, plastic and other products. Adam Perdue says a new chemical plant project near Houston will provide jobs for many skilled workers "A lot of these roughnecks that are gonna lose their jobs out there in the field are gonna be able to come home and, and, and get a welding job or a construction job." he says. But some oil industry experts believe prices will rise again in about six months when the oversupply of oil is reduced. Question: Why is the effect of falling prices worse in North Dakota? - Roughnecks there have lost their jobs. - The oil production there costs more. - Oil platform there has been closed. - Oil prices there have fallen more sharply.
A: The oil production there costs more.

(Question)
Read the following article and select the best answer. Article: Families should not waste their money on organic food,the government has warned.They should instead spend their money on whatever they can afford,even if it means eating frozen vegetables.The government now faces calls to endPS20 million of subsidies to organic farming. A recent study in the British Journal of Nutrition found organic crops have up to 60 percent more antioxidants than non-organic crops.But critics claim there is still no evidence that organic food is a healthier option.Amid growing concern that too few people are eating enough fruit and vegetables,the government is at pains to stress that families should not waste their money on organic food.Just 30 percent of people meet the recommendation to eat five or more portions of fruit and vegetables a day. Government frontbencher Baroness Jolly said,"Organic products provide a useful extension of consumer choice,but it is worth emphasizing that,nutritionally,they are no better and no worse than conventional products.The only benefit of organic farming was enjoyed by birds,insects,mammals and plants.""It is up to the consumers to decide how they spend their money on their fruit and vegetables.There are many reasons why an individual might wish to choose organic products but nutritional benefit should not be one of them,"she added. Chief Executive Helen Browning said,"We know that people choose organic food because they believe it is better for them,also well as for wildlife,animal welfare and the environment,and this research backs up what people think about organic food." Question: What's Helen Browning's attitude to organic food? - Mixed. - Doubtful. - Positive. - Worried.
(Answer)
Positive.