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.
To present a research result.

Read the following article and select the best answer. Article: If you want to keep healthy, you should have good habits. What is a habit? It is something we do very often. We don't even think when we do it. It has become a part of our lives. "Early to bed, early to rise makes a man healthy, wealthy and wise." This is an old English saying. Do you know what it means? It means that we must go to bed early at night and get up early in the morning. If we do, we shall be healthy, rich and clever. Is this true? Perhaps it is. We know the body must have enough sleep. Boys and girls need eight or nine hours' sleep every day. Some people go to bed late at night and get up late in the morning. This is a very bad habit. Then you will not think or do your work well. Of course, you can't be healthy, wealthy or wise. When we get up early in the morning, we can go out and do morning exercises. Exercise means doing things with the body. Walking, running jumping, swimming, and playing ball games are all exercise. If we don't exercise, our body will become weak. Exercise helps the blood to move around inside our body. Blood takes food to all parts of our body. Our body also needs air to breathe. Without air, we will die. We must have lots of clean fresh air if we want to be healthy. That is why many people like to go out to do morning exercise. Question: From the passage we know that it is good for our health to _ . - eat a lot - go to bed early - get up late - go to bed late
go to bed early

Q: Read the following article and select the best answer. Article: International Studies (BA) Key features *Recognizes the "global community" * Has close connections with practical research * Much of the teaching is done in small discussion groups About the course The course gives you chances to know great power politics between nation states. It will provide more space to study particular issues such as relationship among countries in the European Union, third world debt, local and international disagreement, and the work of such international bodies as the United Nations, the European Union, NATO, and the World Bank. The course puts theories into the working of the international system with close attention to particular countries. You will also have a better knowledge of methods of solving the international problems. Related courses *BA (Hons) Community Management * BA (Hons) Public Policy and Management Employment possibilities *International organizations * International business Earth Science (BSc) Key features * Based on key courses and the latest research findings *Pays much attention to practical skills *Offers chances for fieldwork About the course The demand for natural resources is becoming an increasingly serious problem for the future of mankind. Graduates in Earth Science will play an important role in meeting this demand, and in knowing the meaning of using the natural resources. The course covers geography and geology. You will carry out fieldwork in the UK and possibly overseas, and a research in an area of interest to you in the final year. Related courses BSc (Hons) Geography; BSc (Hons) Geology Employment possibilities Mineral , oil, water or other related engineering industries. Question: International Studies is a course in _ - international politics - international business - international systems - international bodies
A: international politics

(Question)
Read the following article and select the best answer. Article: China's admiration of outstanding scholars has turned the well-preserved childhood home of TuYouyou,the Chinese pharmacologist who won this year's Nobel Prize in physiology or Medicine,into a popular tourist destination. Since it was announced on Monday that 84-year-old Tu had become the first Chinese citizen to win this international prize,her former home in the old town of Ningbo,Zhejiang province,has attracted visitors,especially parents and their children----even though it is not open to the public. The house,where Tu lived until she went to university in Beijing,covers an area of 2,200square meters and is priced at 150million yuan($23.6million).It is part of a complex of 37traditional buildings,including several city-and-district-level cultural relic preservation sites,that have been transformed into a high-end art,and commercial zone. "There are continually parents taking their children,from infants in strollers to college students,to take photos in front of Tu's former home.Security guards have been ordered to go on patrol around the clock,"said Mr.Zhao,a salesperson from Ningbo Real Estate Inc Co. Shanghai resident Xu Lingfei,who was on a trip to Ningbo,took her 9-year-old son to walk around the complex on Wednesday."Chinese people believe in exams and awards and have a strong preference for high performers.Taking children to visit the former dwelling places of celebrities is a way to inspire them to study harder,"Xu said. Something similar happened after Mo Yan won the Nobel Prize for literature in 2012.Tourists started visiting Mo's former home in rural Caomi,Shandong Province,in an endless stream starting the day after he won the prize.Some even pulled the radishes planted in front of the house.and carried away some bricks. Question: Tu Youyou's former house is now popular mainly because. . - Tu won the Nobel Prize - it has some cultural relics - it covers a large area - it is a great art and commercial zone
(Answer)
Tu won the Nobel Prize