A. is dependent just on the doctor

　　B. is a goal that can be achieved

　　C. entails any effort on the part of the patient

　　D. is what the patient truly desires

　　35. The author does NOT believe in_________.

　　A. lots of scientific data

　　B. Francis Bacon

　　C. blind trust

　　D. too much knowledge

　　第二篇

　　CT Scans and Lung Cancer

　　Small or slow-growing nodules (小结节) discovered on a lung scan are unlikely to develop into tumors over the next two years, researchers reported on Wednesday.

　　The findings reported in the New England Journal of Medicine, could help doctors decide when to do more aggressive testing for lung cancer. They could also help patients avoid unnecessarily aggressive and potentially harmful testing when lesions (损伤) found.

　　Lung cancer, the biggest cancer killer in the United States and globally, is often not diagnosed until it has spread. It kills 159,000 people a year in the United States alone.

　　The work is part of a larger effort to develop guidelines to help doctors decide what to do when such growths, often discovered by accident, appear in a scan.

　　High-tech (高技术的) X-rays called CT scans can detect tumors-but they see all sorts of other blobs (模糊的一团 ) that are not tumors, and often the only way to tell the difference is to take a biopsy (活检), a dangerous procedure.

　　At the moment, routine lung cancer screening is considered impractical because of its high cost and because too many healthy people are called back for further testing.

　　Good guideline could help make lung cancer screening practical, Dr. Rob van Kiaveren of the Erasmus Medical Center in Rotterdam, the Netherlands, who led the new study, said in a telephone interview.

　　The team looked at7,557 people at high risk for lung cancer because they were current and former smokers. All received multidetector (多层螺旋) CT scans that measured the size of any suspic