How has life expectancy in the U.S. changed from a century ago to today?
A) It has risen to be more than 65 longer.
B) It has increased to almost 35 longer.
C) It has increased, but not significantly.
D) It has exceeded 100 years of age.
Question 2
People's beliefs about health and illness may be incorrect. Which of these common beliefs is true?
A) The United States ranks in the top five nations in the world in terms of life expectancy.
B) The 30-year increase in life expectancy in the United States during the 20th century was due primarily to improved medical care.
C) Infectious and chronic diseases have both decreased in the United States today.
D) None of these is true.
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Wang Guochen, c. nineteenth century
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