[A] Americans are better prepared for death than other people.相反
[B) Americans enjoy a higher life quality than ever before.正确,但不是段落主旨
[C] Americans are over-confident of their medical technology.段落主旨
[D] Americans take a vain pride in their long life expectancy. 没提到pride
[A] medical resources are often wasted未提
[B)doctors are helpless against fatal disease不是主要s
[C] some treatments are too aggressive主要
[D] medical costs are becoming unaffordable未提