Q: Read the article and select the best answer. Article: Jack Andraka from Maryland won the grand prize at the 2012 Intel International Science and Engineering Fair. It is the largest high school science competition in the world. The Maryland teenager is the youngest winner of the $75,000 prize. He was chosen from among 1,500 students in 70 countries. Jack Andraka invented a test for pancreatic cancer . He started to learn it after losing a close family friend to the disease. "I went on the Internet and I found that 85%of all pancreatic cancers are found late, when someone has less than 2% chance of survival , " he says, "and I was thinking,' That's not right. We should be able to do something.'" He found that early discovery is important to increasing the chances of surviving the disease. The Maryland teenager asked to work in a laboratory at Johns Hopkins University in Baltimore and was allowed. There he developed a simple paper test, which can recognize the disease in a single drop of blood. His test has proved correct 90% of the time. It also is 100 times more sensitive than other tests. "It costs 3 cents per test, and then it takes only 5 minutes to run," he said. Jack's success wouldn't have been possible without Anirban Maitra, a professor at Johns Hopkins. He was the only person among the 200 researchers Jack wrote to who showed interest in his project. "I was very surprised that this was a 15-year-old who was writing this. I wanted to meet this clever young man and see what he wanted to talk about and so I called him over for an interview . " Jack worked in Professor Maitra's laboratory, completing his project in 7 months. The government has given the Maryland teenager patent rights to the pancreatic cancer test. He is now talking with companies about developing the test into a simple product. Whatever happens, the professor believes Jack Andraka's name is one we will be hearing again over the next 10 to 20 years. Question: We can infer from the text that Jack Andraka _ . Options: A: left a deep impression on Professor Maitra B: was thought highly of by companies C: got support from others easily D: wasn't afraid of failure
A: A

Q: Read the article and select the best answer. Article: The shocking disappearance of Malaysia Airlines Flight MH370 has captured the attention of millions around the world as the search for the airplane and its passengers and crew continues. What happened to the flight's 239 passengers and crew after the plane left Kuala Lumpur on Saturday? It is becoming an increasingly desperate question as the days pass. But it's hardly the first mystery of its kind. Here are some half-solved and unsolved airline mysteries that kept investigators clueless for years. Air France Flight 447: An Airbus A330 flight from Rio de Janeiro to Paris _ into the Atlantic Ocean in 2009, killing all 228 passengers and crew on board. But it took a full five days for search and rescue teams to find the wreck and another three years for investigators to report that ice crystals had caused the autopilot to disconnect. The bodies of 74 passengers remain unrecovered. Amelia Earhart: Ace pilot Amelia Earhart disappeared in her twin-engine monoplane Electra over the Pacific Ocean in 1937 in an attempt to circumnavigate the globe. No trace of her plane was ever found even after a multi-million dollar search effort, and Earhart was officially declared dead in 1939. Flying Tiger Line Flight 739: A U.S. military flight left Guam in 1962 with more 90 personnel headed for the Philippines, but it never arrived. The pilots never issued a distress call, and 1,300 people involved in the U.S. military search never found any trace of wreckage. British South American Airways: It took more than 50 years to find any trace of the 11 people aboard a 1947 flight that disappeared in the Andes Mountains. A pair of Argentineans rock climbers discovered engine wreckage in the Andes in 1998, and an army expedition later found human remains as well. Uruguayan Air Force Flight 571: A flight headed to Santiago, Chile carrying 45 passengers and crew crashed into the Andes Mountains in poor weather in 1972, killing twelve people. In the meantime, eight were killed in an avalanche that hit the plane's wreckage where they... Question: Which of the following is TRUE according to the passage? _ . Options: A: Earhart was declared dead by the authorities two years later. B: The bodies of Flight 447 had all been found after three years. C: Two Argentineans rock climbers discovered the dead in the Andes. D: Malaysia Airlines Flight MH370 was regarded as the largest air crash.
A: A

Q: Read the article and select the best answer. Article: Historians say Harriet Tubman was born in the year 1820.Nobody really knows.But we do know that Harriet Tubman was one of the bravest women ever born in the United States. From a very early age, Harriet knew how slaves suffered.At six years old, she was sent to the fields.Working outside not only made her body strong but also made her learn about the Underground Railroad, through which she helped hundreds of people escape from slavery later.She also learned many things from other slaves, which one day would help her lead her people to freedom.She became more of a rebel . In 1844, at about age 24, she married a free black man named John Tubman.By now, Harriet was sure she wanted to try to escape.Suddenly, the time came.Her owner died.Though opposed by her husband, she decided to escape.With the help of the Underground Railroad, and through a variety of suffering she finally crossed the border into Pennsylvania, where slavery was banned .Later, she told a friend, "I felt like I was in heaven." Now that Harriet was free, she did not forget the hundreds of other slaves back in Maryland.Harriet traveled back and forth eighteen times, helping about 300 slaves escape into free territory.She became an expert at hiding from slave hunter.The people she helped called her Moses.At one time anyone finding Harriet was promised $40,000 for catching her --dead or alive. During the Civil War, Harriet Tubman went into enemy territory to spy for the North.She also served as a nurse.After four years of bloody fighting, the North won the war. After the fighting ended, Harriet Tubman returned to Auburn, New York.She kept working.She traveled and gave speeches to raise money for better education for black children.She also worked for women's rights and housing.Harriet Tubman died in 1913.She was about 93 years old.By that time, she was recognized as an American hero.The United States government gave a funeral with military honors for the woman known a Moses. Question: People called Harriet "Moses" because they regarded her as _ . Options: A: a sister B: a fighter C: a leader D: a friend
A: C