求助_OG verbal (藍皮) #55

wealthylun

各位NN, 請幫我看下面這題, 雖然選對了但是他到底符合bible裡面說的哪一條? 無因無果嗎?

感謝!

50. There is a great deal of geographical variation in the frequency of many surgical procedures—up to tenfold variation per hundred thousand people between different areas in the numbers of hysterectomies, prostatectomies, and tonsillectomies. To support a conclusion that much of the variation is due to unnecessary surgical procedures, it would be most important to establish which of the following? (A)A local board of review at each hospital examines the records of every operation to determine whether the surgical procedure was necessary. (B)The variation is unrelated to factors (other than the surgical procedures themselves) that influence the incidence of diseases for which surgery might be considered. (C)There are several categories of surgical procedure (other than hysterectomies, prostatectomies, and tonsillectomies) that are often performed unnecessarily. (D)For certain surgical procedures, it is difficult to determine after the operation whether the procedures were necessary or whether alternative treatment would have succeeded. (E)With respect to how often they are performed unnecessarily, hysterectomies, prostatectomies, and tonsillectomies are representative of surgical procedures in general.

wildmantomba

the answer should be B)

排除他因

wealthylun

3Q