[求助]LAST 6-2-6

憧憬

High-technology medicine is driving up the nation's health care costs. Recent advances in cataract surgery illustrate why this is occurring. Cataracts are a major cause of blindness, especially in elderly people. Ten years ago, cataract surgery was painful and not always effective. Thanks to the new technology used in cataract surgery, the operation now restores vision dramatically and is less expensive. These two factors have caused the number of cataract operations performed to increase greatly, which has, in turn, drive up the total amount spent on cataract surgery.> >

6. which one of the following can be inferred from the passage?

(A) Ten years ago, few people had successful cataract surgery.

(B) In the long run, the advantages of advanced medical technology are likely to be outweighed by the disadvantages.

(C) The total amount spent on cataract surgery has increased number of people electing to have the surgery more than offsets the decrease in cost per operation.

(D) Huge increase in the nation's health care costs are due primarily to increased demand for surgery for older people.

(E) Ten years ago, cataract surgery was affordable for more people than it was last year.> >

>为什么A不对呢？>

tangyi79

Ten years ago, cataract surgery was painful and not always effective.


只是说手术效果不好。并没有说手术不成功。


因为技术落后，成功的手术也可能效果不好。

憧憬

多谢 我把effective=successful