短文理解-Practice-3.mp3: Practice-3 1. A. It has been proven to be the best painkiller. B. It is a possible cure for heart disease. C. It can help lower high body temperature effectively. D. It reduces the chance of death for heart surgery patients. 2. A. It keeps blood vessels from being blocked. B. It speeds up their recovery after surgery. C. It increases the blood flow to the heart. D. It adjusts their blood pressure. 3. A. It is harmful to heart surgery patients with stomach bleeding. B. It should not be taken by heart surgery patients before the operation. C. It will have considerable side effects if taken in large doses. D. It should not be given to patients immediately after the operation.