The cancer death rate in the U.S. fell by the most on record as advances in treatments

C. 2.9 million people die of cancer in America every year
D. most of the cancer patients in America suffer from lung cancer
43. We can learn from the passage that .
A. female death rate of lung cancer drops more than that of male
B. targeted drugs have led to rapid increase in cancer death rates
C. better scanning technology will lead to improvement in treating genetic flaws
D. improper use of prostate-specific antigen test can lead to over-treatment of men
44. The underlined expression "level off” in paragraph 5 means .
A. remain unchanged B. show up C. take off D. become sharp
45. What might be the best title of the passage?
A. Medical Progress Prolonging Patients’ Lives
B. Cancer Death Rates Dropping at the Fastest Pace
C. Significant Improvement in Treating Lung Cancer
D. Advanced Technologies Applied in Cancer Treatment

答案
BDAB