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Read the following article and select the best answer. Article: Astronomers have captured the first direct image of a planet being born. Adam Kraus, of the University of Hawaii's Institute for Astronomy, said the planet is being formed out of dust and gas circling a 2-million-yea-old star about 450 light years from Earth. The planet itself, based on scientific models of how planets form, is believed to have started taking shape about 50,000 to 100,000 years ago. Called LkCa 15b, it's the youngest planet ever observed. The previous record holder was about five times older. Kraus and his colleague, Michael Ireland from Macquarie University and the Australian Astronomical Observatory, used Keck telescopes on Mauna Kea(a volcano on the island of Hawaii, US) to find the planet. Kraus presented the discovery Wednesday at NASA's Goddard Space Flight Center in Maryland. Observing planets while they're forming can help scientists answer questions like weather planets form early in the life of a star or later, and whether they form relatively close to stars or father away. Planets can change orbits after forming, so it's difficult to answer such questions by studying older planets. "These very basic questions of when and where are best answered when you can actually see the planet forming, as the process is happening right now," Kraus said. Scientists hadn't been able to see such young planets before because the stars they're circling around outshine them. Kraus and Ireland used two techniques to overcome this problem.[:++] One method, which is also used by other astronomers, was to change the shape of the telescope mirrors to remove light distortion created by the Earth's atmosphere. The other method they used, which was unique, was to put masks with several holes over most of the telescope mirrors. The combination of these techniques allowed the astronomers to obtain high-quality images that let them see the planet next to the bright star. The star LkCa 15--the planet is named after its star--was the team's second target. They immediately knew they were seeing something new,... Question: Which of the following would be the best title for the text? - Youngest planet seen as it's forming. - Planet 450 light years away discovered. - World's first direct image of a planet taken. - New technique helps discover young planets.
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Youngest planet seen as it's forming.

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Read the following article and select the best answer. Article: Each Sunday, people can hear the music of the Mission Dolores Basilica in San Francisco. The Spanish missionaries built the church in 1791. It was the start of a special kind of neighborhood: the Mission District. The area is a place with a long and varied history. One community member says that it's important for people to understand the many levels of history in the neighborhood. He feels that _ is a big part of understanding what it means to be a real San Franciscan. One of the most interesting parts of the district is its people. Over the years, immigrants have come to the area from Ireland, Germany, and Italy. But the most recent immigrants are mainly from Latin America. It's easy to see the style that these recent additions give to the neighborhood. You can see it in the art on the walls, taste it in the food, and hear it in the music! Juan Pedro Gaffney, the director of the Spanish Choir of San Francisco, says that the people there share the pain and the happiness of their friends and family members and that music has always been a basic part of cultural identity in the district. He feels that the music of the district is colorful and lively. But it isn't just its music that's colorful and lively. Its art is full of life as well. The local art community stays close to the area's culture and tradition. A local arts organization often leads people on walks through the district. They visit streets like Balmy Alley, which is famous for its murals . Even though the meanings behind the murals are always changing, they are still very powerful. One artist explains that they are fighting for fairness in the community and to help the environment through murals. Apparently, they're something the community likes. Many of these artists feel that the district is a successful neighborhood where new immigrants are welcome. "People see that they're not so different from each other," says one artist. "There are a lot of things that bind the immigrants through culture and tradition." Question: The author shows the multi-culture of the Mission District from the aspects of _ . - literature and sports - music and murals - buildings and clothes - customs and festivals
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music and murals

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Read the following article and select the best answer. Article: Should people who study science and business pay less for college than people who focus on art and history? That may soon be the case at Florida's state universities. In tough economic times, Florida governor Rick Scott wants to lead college students toward careers that will pay off after graduation. There are more jobs available in Florida in the fields of business, engineering, healthcare, science and technology. So why not encourage students to focus on these "high-demand" subjects by charging less tuition for them? "We assume students go to college because they want to pursue jobs," Dale Brill said. He is the head of a group of business people, educators and lawmakers who made the recommendation to the governor to keep tuition low for job-friendly areas of academic study. "We all share the goal of students getting jobs and being productive citizens. Some majors are more valuable than others." Supporters of the plan have their reasons. More students will choose these "high-demand" majors and get jobs after graduation. The state will gain an educated workforce that is qualified to fill open jobs. Universities that can show that their graduates are getting jobs will qualify for more funding from the state. But critics of the plan say it's unfair to load humanities majors--those who study literature, philosophy, history and art--with debt while keeping tuition low for so-called "high-demand" majors in business and science. In fact, university professors wrote a letter to Governor Scott arguing that if students majoring in history and other humanities subjects are forced to pay higher tuition, they may simply choose to attend universities in other states. Still others argue that the plan sets students up for failure. Students should choose majors based on their interests, skills and talents, rather than on what jobs are available at any given time. Those who choose majors because they are interested in a particular field of study will be more successful and satisfied in their careers. Question: Why does Florida governor Rick Scott want to charge science and business students less ? - Because these fields usually attract very few students - Because science and business are too difficult to learn. - Because he thinks they have a poor family background. - Because he wants more students to choose these fields .
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Because he wants more students to choose these fields .