[語文] GWDTN-5-CR

[krisis (fhoa f)]

  GWD7-Q17:

  Of patients over 65 years old who survived coronary bypass surgery—a
  procedure widely prescribed for people with heart disease—only 75
  percent benefited from the surgery.  Thus it appears that for one in
  four such patients, the doctors who advised them to undergo this surgery,
  with its attendant risks and expense, were more interested in an
  opportunity to practice their skills and in their fee than in helping
  the patient. 心臟繞道手術，1/4失敗醫生還做，是為練習和賺錢多過幫助病人。

  Which of the following, if true, most seriously undermines the argument?

  ANS: The patients who underwent coronary bypass surgery but who
       did not benefit from it were medically indistinguishable,
       prior to their surgery, from the patients who did benefit.

  我不懂為什麼這段文會undermine

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