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Read the following article and select the best answer. Article: Getting enough sleep on a regular basis is one important way to protect the health of your heart. Poor sleep is associated with a range of cardiovascular problems, including high blood pressure, heart attack, and heart failure. Both men and women are at increased risk for these conditions. But we continue to learn that when it comes to health problems associated with sleep, the particular risks to men and women are not always the same. A new study suggests that for women who already have heart disease, poor sleep may be particularly dangerous to their heart health. Research indicates that poor-quality sleep--and waking too early in particular--is associated with increased inflammation among women with heart disease. There was no similar association found for men, suggesting that women with heart disease and sleep problems may be at particular risk for inflammation that can be damaging to the heart. Researchers at the University of California, San Francisco investigated the relationship between sleep quality and inflammation linked to coronary heart disease. They also sought information about how an association between sleep and inflammation might differ between men and women. Their investigation included 980 men and women at first, and 626 completed the 5-year study. All of those included were suffering for coronary heart disease. The average age of men in the study was 66. Women were slightly younger, with an average age of 64. Researchers measured sleep quality by asking participants to rate their sleep over the previous month. They also asked for reports of some of the most common sleep problems, including difficulty falling asleep, difficulty staying asleep, waking frequently throughout the night, and waking too early in the morning. After 5 years, researchers repeated tests for inflammation and once again sought reports on sleep quality and sleep problems. When they analyzed data for both men and women together, researchers found no links between inflammations and sleep quality. However, when they... Question: The researchers did the study _ . - to find a cure for women with heart disease - to know what contributes to inflammation - to look into the relationship between sleep quality and inflammation - to track the lifestyle of men and women
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to look into the relationship between sleep quality and inflammation

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Read the following article and select the best answer. Article: French people pride themselves on their delicious foods, such as cheese, baguettes and croissants(two kinds of food). In fact, food is an important part of French culture. Families and friends spend hours over the dinner table each night. It is the opposite of the fast-food habit common in other parts of the West. It's the reason why the French are very angry that a McDonald's is opening beneath Paris's most famous museum: the Louvre . The new restaurant will be the 1,142nd McDonald's in France, and will open in the underground approach to the museum. But many French people can't understand why this American chain is opening in the heart of French culture. However, McDonald's is paying no notice to the complaint. McDonald's now has 31,000 chains worldwide. Tourists are hungry, and opening chains in tourist spots pays well. There is another chain threatening France's heritage. This time it is coffee rather than burgers. As more and more Starbucks open in Paris, traditional French cafes are forced to close. The trouble with American companies opening chains throughout the world is the destructive effect they can have on a country's culture. How can a small, independent coffee shop compete with the multi-billion dollar chain? You can go to a Starbucks in any city in the world, but you can only go to a Parisian cafe in France. Responsibility is with the tourists. A McDonald's wouldn't open so near the Louvre if it weren't not going to make money. Similarly, a Pizza Hut wouldn't overlook Egypt's Great Pyramid if no one wants to sit in it. Maybe next time you visit the Great Wall, you should think twice before ordering a Cappuccino in the Starbucks. Question: The McDonald's will be located in the underground approach to the museum because _ . - the complaints of the French are useless - opening a chain in tourist spot is rewarding - McDonald's tends to be in the heart of culture - it will help to attract more tourists for the museum
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opening a chain in tourist spot is rewarding

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Read the following article and select the best answer. Article: Nowadays the U.S. students are sleepy in school because they spend too much time texting, playing video games, watching TV and using the media in other ways. "Heavy media use interferes with sleep by reducing sleep duration, making it harder to fall asleep, and lowering sleep quality," Meilan Zhang, an assistant professor at the University of Texas at El Paso, wrote in her research review in the journal, Sleep Medicine. But the relationship between youth's media use and sleep is not so simple, said Michael Gradisar, who authored both that review and the Sleep Medicine meta-analysis. "Technology use is the new evidence when we are trying to answer 'Why are school-age children sleeping less?'" said Mr. Gradisar, an associate professor of psychology at Flinders University in Adelaide, Australia. There may be safe limits to technology use, Mr. Gradisar stated. For instance, recent research results indicate that using a bright screen for an hour before bed or even playing violent video games for less than that will not necessarily interfere with teenagers' sleep, he wrote. But longer periods of usage can be harmful to sleep, Mr. Gradisar added. Rather than delaying school start times, he said, the first step should be educating parents about limiting the hours that their children are using technology before bed, and enforcing a consistent bedtime. Early school start times are also commonly blamed for students' sleepiness, especially for adolescents. Secondary schools around the nation and the world have been delaying start times, often with positive results. Mr. Minnich of the TIMSS and PIRLS International Study Center hesitated to put blame to any particular factor. But he did think that cost-saving measures to consolidate bus routes might help explain U.S. students' sleepiness. "For those children who board the bus first, they must get up earlier, may end up sleeping on the way to school, and may end up arriving at school sleepy." he said. Question: Who are most likely to be interested in the text? - The teachers. - The parents. - The officials. - The researchers.
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The parents.