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Read the following article and select the best answer. Article: At thirteen, I was diagnosed with kind of attention disorder. It made school difficult for me. When everyone else in the class was focusing on tasks, I could not. In my first literature class, Mrs.Smith asked us to read a story and then write on it, all within 45 minutes. I raised my hand right away and said,"Mrs.Smith, you see, the doctor said I have attention problems. I might not be able to do it." She glanced down at me through her glasses, "you are no different from your classmates, young man." I tried, but I didn't finish the reading when the bell rang. I had to take it home. In the quietness of my bedroom, the story suddenly all became clear to me. It was about a blind person, Louis Braille. He lived in a time when the blind couldn't get much education. But Louis didn't give up. Instead, he invented a reading system of raised dots , which opened up a whole new world of knowledge to the blind. Wasn't I the "blind" in my class, being made to learn like the "sighted" students? My thoughts spilled out and my pen started to dance. I completed the task within 40 minutes. Indeed, I was no different from others; I just needed a quieter place. If Louis could find his way out of his problems, why should I ever give up? I didn't expect anything when I handed in my paper to Mrs.Smith, so it was quite a surprise when it came back to me the next day- with an"A" on it. At the bottom of the paper were these words:" See what you can do when you keep trying?" Question: The author didn't finish the reading in class because. - He was new to the class - He was tired of literature - He had an attention disorder - He wanted to take the task home
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He had an attention disorder

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Read the following article and select the best answer. Article: Between 1996 and 2010, according to a study published in 2012, the use of computed tomography (CT) scans nearly increased by three times as much, from 52 scans per 1,000 patients to 149 scans per 1,000 patients. And those images certainly provided valuable information to help doctors diagnose hidden conditions that wouldn't have been possible without the added insight. But CT scans produce those detailed images using small amounts of radiation, and while the risk of that exposure is small, on a population level, increased reliance on the scans could drive a slight bump in cancer risk from CT. That's exactly what the latest study, published in the British Medical Journal, found. It's the largest study to date -- involving 10.9 million Australians born between 1985 and 2005. A team of researchers from Australia and Europe studied the cancer rates of Australian patients from birth to 19 years old who had CT scans in early childhood, and compared them to those who did not receive the scans. Most of the cases were followed for 10 to 17 years, and by the end of the study period, 3,150 of the 680,000 patients exposed to CT scans during childhood and young adulthood developed cancer and 57,542 of the remaining participants, who were not exposed, developed cancer. Those who were scanned had a 24% greater risk of cancer than those who did not receive them, with the risk increasing by 16% for each additional CT. The risk was highest for children who received scans before age five; they showed a 35% increased chance of developing a cancer during the study period than those who weren't scanned at this age. That research is still ongoing, however, and in the meantime, doctors and patients are left to find the delicate balance between how necessary scans are to diagnose disease, and their potential risk of causing cancer, which, most experts say, is still very small. "All parties, including patients and families, need to work together to make sure that CT scans are limited to situations where there is a definite ... Question: What is the purpose of this passage? - To report a coming event. - To present a research result. - To tell an interesting story. - To introduce a diagnostic tool.
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To present a research result.

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Read the following article and select the best answer. Article: Every small child knows the panic of losing sight of its mother in the supermarket, and as these delightful pictures show, small whales obviously feel the same way. Taken by a British diver who was following the sperm whale calf, _ show the minute the baby - who had lost track of its mum - found her again in the sea off the Azores. Soaring 30ft across the waves, the newborn slammed its body onto the water with joy after becoming separated from its family group in the chilly waters. But the whale calf was doing more than just jumping for joy. British biologist and dive guide Justin Hart, 44, who took the pictures, says that young whales communicate with older ones in the ocean by creating a slamming sound which travels through the water to the ears of the adults deep below. By leaping out of the water and slamming its 12ft long body onto the surface of the sea up to 30 times, the baby whale is telling its relatives where it is so they can regroup. He said: "We had been following the sperm whale calf for most of the day. Sperm whales, of all the whales and dolphins, are the species that dive the deepest and for the longest time." "The calves have to follow what's going on below them from the surface as best they can probably listening to the echo location clicks of the adults." "However, sometimes the adults re-surface far out of sight of the calf, and in this situation the whales often leap out of the water causing a large bang as their bodies hit the surface. In this way, the whale family could regroup." He added: "When I took the photo, two adults' females had just resurfaced and the calf quite literally began jumping for joy." Mr. Hart captured the rare image four miles from the port of Lajes do Pico while he was working as a crewman on an underwater documentary with special license to film sperm whales in the area. Sperm whales live in nearly all the world's oceans in groups of about 15 to 20 animals and they practice communal childcare. The calves do not have to follow their mother too closely as sperm... Question: What would be the best title for the text? - Baby whales perform slamming with joy - Sperm whales ---fairly intelligent animals - Lost sperm whale baby reunited with its family - Slamming--- a way of communication among whales
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Lost sperm whale baby reunited with its family