Read the following article and select the best answer. Article: Almost all of us have been there: A sense of uneasiness strikes us when we see the battery running low on the smartphone. While today's smartphones enable us to surf the Internet, take pictures and play music, their limited, sometimes annoyingly short battery life has started to make people full of memories of early models. "My favorite phone of all time was a silver Nokia 6310i from the early 2000s. It may be primitive by today's standards, but it could run for 17 days on a single charge," wrote Daily Mail columnist David Derbyshire. But scientists spend no time thinking about the past. They have built an aluminium battery which could be a cheap, fast-charging alternative to current designs. You can squeeze, and practically bend it in half without breaking the packet. It is more environmentally friendly than alkaline batteries, and more safe than lithium batteries - it won't catch fire "even if you drill through it", as Hongjie Dai of Stanford University told The Telegraph. The battery is the work of a team led by Dai. And the best part is that it has a recharge time of around one minute. However, at present, the only problem is that it produces just half the voltage of a typical lithium battery. But Dai explained they were setting about changing the voltage and energy density ". "Our battery has everything else you'd dream that a battery should have. I see this as a new battery in its early days," he told The Telegraph. Question: Which of the following can best summarize the passage? - A new battery in its early days. - A new trend in the smartphone market. - The annoyance short battery life causes - The invention of a new smartphone battery.
The invention of a new smartphone battery.

Read the following article and select the best answer. Article: Dear iPhone 4 Users, The iPhone 4 has been the most successful product in Apple's history. It is the best smartphone ever, and most users have told that they love it. So we were surprised when reading reports of reception problems, and we immediately began researching them. To start with, holding tightly almost any mobile phone in certain ways will reduce its reception by 1 or more bars of signal strength. This is true of iPhone 4, iPhone 3GS, as well as many other phones. But some users have reported that iPhone 4 can drop 4 or 5 bars when tightly held in a way. This is a far bigger drop than normal, and as a result some have said the iPhone 4 has a faulty antenna design. Upon research, we find that the formula we use to calculate how many bars of signal strength to display is totally wrong. Our formula usually mistakenly displays 2 more bars than it should for a given signal strength. The big drop in bars is because the high bars were never real in the beginning. We will give a free software update to correct the formula. This software update will also be available for iPhone 3GS. If you are not fully satisfied, you can return your undamaged iPhone to any Apple Retail Store or the online Apple Store within 30 days of buying and get all your money back. Thank you for your patience and support. Apple Question: The iPhone 4 drops more bars than normal when tightly held because of _ . - a wrong antenna design - wrong usage - weak signal strength - a wrong formula
a wrong formula

Read the following article and select the best answer. Article: If you know exactly what you want, the best route to a job is to get specialized training.A recent survey shows that companies like graduates in such fields as business and health care who can go to work immediately with very little on-the-job training. That's especially true of booming fields that are challenging for workers.At Cornell's School of Hotel Administration, for example, bachelor's degree graduates get an average of four or five job offers with salaries ranging from the high teens to the low 20s and plenty of chances for rapid advancement.Large companies, especially, like a background of formal education coupled with work experience. But in the long run, too much specialization doesn't pay off.Business, which has been flooded with MBAs, no longer considers the degree an automatic stamp of approval.The MBA may open doors and command a higher salary initially, _ . As further evidence of the erosion of corporate faith in specialized degrees, Michigan State's Scheetz cites a pattern in corporate hiring practices.Although companies tend to take on specialists as new hires, they often seek out generalists for middle and upper-level management."They want someone who isn't constrained by nuts and bolts to look at the big picture, " says Scheetz. Time and again labor-market analysts mention a need for talents that liberal-arts majors are assumed to have:writing and communication skills, organizational skills, open-mindedness and adaptability, and the ability to analyze and solve problems.David Birch claims he does not hire anybody with an MBA or an engineering degree, "I hire only liberal-arts people because they have a less-than-canned way of doing things, " says Birch.Liberal-arts means an academically thorough and strict program that includes literature, history, mathematics, economics, science, human behavior-plus a computer course or two.With that under your belt, you can feel free to specialize."A liberal-arts degree coupled with an MBA or some other technical training is a very good combination in... Question: David Birch claims that he only hires liberal-arts people because _ . - they are more capable of handling changing situations - they can stick to established ways of solving problems - they are thoroughly trained in a variety of specialized fields - they have attended special programs in management
they are more capable of handling changing situations