Read the following article and select the best answer. Article: Every fall, like clockwork, Linda Krentz of Beaverton, Oregon, felt her brain go on strike. "I just couldn't get going in the morning," she says. "I'd get depressed and gain 10 pounds every winter and lose them again in the spring." Then she read about seasonal affective disorder, a form of depression that occurs in fall and winter, and she saw the light literally. Every morning now she turns on a specially constructed light box for half an hour and sits in front of it to trick her brain into thinking it's still enjoying those long summer days. It seems to work. Krentz is not alone. Scientists estimate that 10 million Americans suffer from seasonal depression and 25 million more develop milder versions. But there's never been definitive proof that treatment with very bright lights makes a difference. After all, it's hard to do a double-blind test when the subjects can see for themselves whether or not the light is on. That's why nobody has ever separated the real effects of light therapy from placebo effects. Until now, in three separate studies published last month, researchers report not only that light therapy works better than a placebo but that treatment is usually more effective in the early morning than in the evening. In two of the groups, the placebo problem was resolved by telling patients they were comparing light boxes to a new anti-depressant device that gives off negatively charged ions . The third used the timing of light therapy as the control. Why does light therapy work? No one really knows. "Our research suggests it has something to do with shifting the body's internal clock," says psychiatrist Dr. Lewey. The body is programmed to start the day with sunrise, he explains, and this gets later as the days get shorter. But why such subtle shifts make some people depressed and not others is a mystery. That hasn't stopped thousands of winter depressives from trying to heal themselves. Light boxes for that purpose are available without a doctor's prescription. That bothers psychologist Michael... Question: What is psychologist Michael Terman's major concern? - Winter depressives will be addicted to using light boxes. - No mental patients would bother to consult psychiatrists. - Bad light boxes will give off harmful ultraviolet lights. - Light therapy could be misused by certain mental patients.
Light therapy could be misused by certain mental patients.

Read the following article and select the best answer. Article: After record increase in over 40 countries, Universal Robots' lightweight robotic arms are now making their US debut at this year's International Manufacturing Trade Show (IMTS) in Chicago. The UR5 robotic arm made by Universal Robots has been announced officially "The world's most innovative robot" by The International Federation of Robotics and IEEE (Institute of Electrical and Electronics Engineers) Robotics and Automation Society. The US audience will now see the award-winning robot -- along with its big brother UR10 -- for the first time. The UR5 and UR10 robotic arms are aimed at small-sized companies that thought robots were too expensive and hard to operate in existing production. The robotic arms are easily moved around the production area and present a simple user interface which lets workers quickly operate them. Esben Ostergaard, founder and CTO (Chief Technical Officer) at Universal Robots, explains how the robots were designed to be as user--friendly as possible: "We decided to make programming easy by developing a user interface worked together with a "teaching function" allowing the user to simply took hold of the robot arm and show _ how a movement should be done. The robot can work in any production process very quickly. Our experience shows this is generally done in a few hours." The robots weigh as little as 40 pounds, making it possible for them to be moved around the production area to do different tasks. The UR5 can handle a load of up to 5 kilos (11 pounds), the UR10, 10 kilos (22 pounds). As soon as a worker touches the robot arm and uses a force of at least 150 Newton, the robot arm will automatically stop operating. Question: According to the text, the UR5 robotic arm _ . - was designed by IEEE - is aimed at small companies - has won a number of awards - made its appearance in 40 countries
is aimed at small companies

Q: Read the following article and select the best answer. Article: Many a young person tells me he wants to be a writer. I always encourage such people,but I also explain that there's a big difference between "being a writer" and writing.In most cases these people are dreaming of wealth and fame, not the long hours alone at a typewriter. "You've got to want to write, "I say to them, "not want to be a writer". The reality is that writing is a lonely, private and poor-paying affair. For every writer kissed by fortune there are thousands more whose longing is never rewarded. When I left a 20-year career in the U.S. Coat Guard to become a freelance writer, I had no hope at all.What I did have was a friend who found me a room in a New York apartment building.It didn't even matter that it was cold and had no bathroom.I immediately bought a used typewriter and felt like a real writer. After a year or so.However, I still hadn't gotten a break and began to doubt myself.It was so hard to sell a story that I hardly made enough to eat.But I knew I wanted to write,l had dreamed about it for years.I wasn't going to be one _ I would keep putting my dream to the test--even though it meant living with uncertainty and fear of failure.This is the _ of hope,and anyone with a dream must learn to live there. Question: "shadow land" in the last sentence means _ . - the wonderland one often dreams about - the bright future that one is looking forward to - the state of uncertainty before one's final goal is reached - a world that exists only in one's imagination
A: the state of uncertainty before one's final goal is reached

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Read the following article and select the best answer. Article: Handball is a hugely popular sport in Europe and Asia, and it is one of the fastest and most exciting sports in the world.It combines basketball and soccer with the attracting saves of water polo. Handball is played on an indoor court(the size of two basketball courts)and there are goals at each end.There are twelve players on each team,two goal keepers and ten field players,but there is a maximum of one goalkeeper and six field players from each team allowed on the court at any one time.The idea is simple:score more goals than the other team. The ball is made of leather or synthetic material and it must be round.The surface must not be shiny or slippery.The size and weight of the ball varies for male and female teams,and adult and junior teams. Handball has the same free-ranging play as basketball,with all players except the goalkeeper constantly moving from attack to defence.The goalkeeper uses hands, feet,head and body to keep out the other team's shots.The origins of handball are unclear.Many people believe that it developed as a training game for soccer,to be played in the off season,or when it snowing.Now,in countries where handball is popular,players can earn large sums of money,and indoor stadiums seating over ten thousand people sell out regularly.Handball has been played at the Olympics since 1972. Question: The statement,"The idea is simple",emphasizes that in handball the _ . - game has only one purpose - court is clearly marked - players can change positions - goalkeeper is the last defense
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game has only one purpose