81. Americans by and large believe that ____.

1. more money spent on health care may result in better health
2. medicine may provide an effective cure for various health problems
3. health problems caused by bad habits can hardly be solved by medicine
4. higher birthrate can better solve the problem of aging society than medicine

82. According to the author, Costa Ricans ____.

1. have a healthier way of life than the Americans
2. enjoy a longer life expectancy than the Americans
3. are more dependent on medicine
4. are less concerned about their health

83. The health of younger Americans may most probably be affected by ____.

1. overwork
2. depression
3. obesity
4. lifestyle

84. Which of the following is NOT a reason why health care investment fails to bring a longer life?

1. Drug reaction due to improper use of drugs.
2. Imbalanced distribution of health care money.
3. Soaring prices of both drugs and new therapies.
4. Failure of many highly-evaluated medical treatments.

85. The passage is mainly focused on ____.

1. the limits of medicine
2. the life hazards in the U.S.
3. the barriers to a longer life
4. the problems in health investment

(Reference keys.)