Problem:OPTIONS:
- A new invention
- A new technique
- Mouth tissue can restore your vision
- Transplanting can restore your vision

Read the following article and answer the question. Article: Japanese doctors have used thin sheets of tissue from people's cheeks repair damaged corneas . A team from Osaka University transplanted thin layers of cheek cells onto the eyes of four patients with a rare and painful eye condition,reports BBC online. Patients whose vision had been cloudy could see well afterwards,and the"new corneas"remained clear more than a year after the operation. Doctors can also take cells from a healthy eye and grow them in a dish to produce a new cornea,or they can transplant corneas from donors . But these techniques may not work when both eyes are too badly damaged by accident or disease. The team hope their work may help solve the problem and lead to other types of grow-your-own tissue transplants. The cornea is the clear layer of cells on the surface of the eye. It can be damaged by trauma or by a range of diseases. The team worked with four patients who had a painful condition that causes cloudy corneas and dry eyes. Often the eye can regenerate cornea cells but none of the four patients had this ability. The researchers took a 3 mm-wide square of tissue from inside the mouth(cheeks)and grew it into a thin layer in the lab. They used a special low temperature technique to separate a very thin sheet off each batch. They then laid that onto the patient's eye. The cell layers stuck onto the eye and developed into tissue that looked and acted like a healthy cornea. However,long-term follow-up and experience with a large series of patients is needed to assess the benefits and risks this method. Yet,"it does offer the potential of treating severe eye diseases that are resistant to standard approaches,"said the head of the research,Kohji Nishida. Question: Which of the following is the best title? Answer:
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A: Mouth tissue can restore your vision

Problem:OPTIONS:
- advising the patient to seek a second opinion
- warning the patient that a hospital stay might be necessary
- instructing the patient to buy more medical services
- admitting that the first visit was ineffective

Read the following article and answer the question. Article: The health-care economy is filled with unusual and even unique economic relationships. One of the least understood involves the peculiar roles of producer or "provider" and purchaser or "consumer" in the typical doctor-patient relationship. In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various appealing factors of price, quality, and use, and it is the buyer who makes the decision. Such condition, however, is not common in most of the health-care industry. In the health-care industry, the doctor-patient relationship is the mirror image of the ordinary relationship between producer and consumer. Once an individual has chosen to see a physician -- and even then there may be no real choice -- it is the physician who usually makes all significant purchasing decisions: whether the patient should return "next Wednesday", whether X-rays are needed, whether drugs should be prescribed, etc. It is rare that a patient will challenge such professional decisions or raise in advance questions about price, especially when the disease is regarded as serious. This is particularly significant in relation to hospital care. The physician must certify the need for hospitalization, determine what procedures will be performed, and announce when the patient may be discharged. The patient may be consulted about some of the decisions, but in general it is the doctor's judgments that are final. Little wonder then that in the eye of the hospital it is the physician who is the real "consumer". As a consequence, the medical staff represents the "power center" in hospital policy and decision-making, not the administration. Although usually there are in this situation four identifiable participants-- the physician, the hospital, the patient, and the payer (generally an insurance carrier or government)-- the physician makes the essential decisions for all of them. The hospital becomes an extension of the physician; the payer generally meets most of the bills generated by the... Question: According to the author, when a doctor tells a patient to "return next Wednesday", the doctor is in fact _ . Answer:
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A: instructing the patient to buy more medical services

Problem:OPTIONS:
- To encourage people to raise questions.
- To cause difficulty in understanding.
- to provide a person with an explanation.
- To limit people's imagination.

Read the following article and answer the question. Article: Tales From Animal Hospital David Grant David Grant has become a familiar face to millions of fans of Animal Hospital. Here Dr Grant tells us the very best of his personal stories about the animals he has treated, including familiar patients such as the dogs Snowy and Duchess, the delightful cat Marigold Serendipity Diamond. He also takes the reader behind the scenes at Harmsworth Memorial Animal Hospital as he describes his day, from ordinary medical check-ups to surgery . Tales From Animal Hospital will delight all fans of the program and anyone who has a lively interest in their pet, whether it be cat, dog or snake I ! $ 14.99 Hardback 272 pp Simon Schuster ISBN 0751304417 Isaac Newton: The Last Sorcerer Michael White From the author of Stephen Hawking: A Life in Science, comes this color1ful description of the life of the world's first modern scientist. Interesting yet based on fact, Michael White's learned yet readable new book offers a true picture of Newton completely different from what people commonly know about him. Newton is shown as a gifted scientist with very human weaknesses who stood at the point in history where magic ended and science began. PS8.99 Hardback 320 pp Fourth Estate ISBN 1857024168 Fermat's Last Theorem Simon Singh In 1963 a schoolboy called Andrew Wiles reading in his school library came across the world's greatest mathematical problem: Fermat's Last Theorem . First put forward by the French mathematician Pierre de Fermat in the seventeenth century, the theorem had baffled and beaten the finest mathematical minds, including a French woman scientist who made a major advance in working out the problem, and who had to dress like a man in order to be able to study at the Ecole Polytechnique. Through unbelievable determination Andrew Wiles finally worked out the problem in 1995. An unusual story of human effort over three centuries, Fermat's Last Theorem will delight specialists and general readers alike. PS12.99 Hardback 384 pp Fourth Estate ISBN 1857025210 Question: Which of the following best explains the meaning of the word "baffle" as it is used in the text? Answer:
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A:
To cause difficulty in understanding.