In the past decade, a decreasing percentage of money spent on treating
disease X went to pay for standard methods of treatment, which are known to
be effective though they are expensive and painful. An increasing percentage
is being spent on nonstandard treatments, which cause little discomfort.
Unfortunately, the nonstandard treatments have proved to be ineffective.
Obviously, less money is being spent now on effective treatments of disease X
than was spent ten years ago.
Question: Which one of the following, if assumed, allows the conclusion above
to be properly drawn?
Ans: The total amonut of money spent on treating disease X slowly declined
during the past decade.
有高手可以解釋一下為什麼是這個答案嗎？
感謝
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※ 編輯: ilovemozart 來自: 123.192.158.224 (12/25 15:00)