The author is primarily concerned with ______.
A:condemning the U.S. for its failure to provide better medical care to the poor
B:evaluating the relative significance of factors contributing to the poor health status in the U. S.
C:providing information which the reader can use to improve his or her personal health
D:comparing the health status of the U.S. population with that of the world averages
发布时间:2024-03-28 10:44:04