急求-逻辑狗狗第18题到底哪个答案对呢？

田田叶子

18、GWD

原题有待确认,也请见过的同胞们帮忙找找看，谢谢。

问hospital和clinic都想买一种仪器，问需要知道什么，我记得答案是关于使用率的，没仔细看就选了。

(from langrenly 710)



GWD17-Q23（TN14）
Because visual inspection cannot reliably distinguish certain skin discolorations from skin cancers, dermatologists at clinics have needed to perform tests of skin tissue taken from patients.  At Westville Hospital
, dermatological diagnostic costs were reduced by the purchase of a new imaging machine that diagnoses skin cancer in such cases as reliably as the tissue tests do.  Consequently, even though the machine is expensive, a dermatological clinic in Westville is considering buying one to reduce diagnostic costs.
Which of the following would it be most useful for the clinic to establish in order to make its decision?
A.      Whether the visits of patients who require diagnosis of skin discolorations tend to be shorter in duration at the clinic than at the hospital
B.       Whether the principles on which the machine operates have been known to science for a long time
C.      Whether the machine at the clinic would get significantly less heavy use than the machine at the hospital does
D.      Whether in certain cases of skin discoloration, visual inspection is sufficient to make a diagnosis of skin cancer
E.       Whether hospitals in other parts of the country have purchased such imaging machines
（fromcherryhz cherryhz亲所给的答案为A）

(from拒绝被忽悠! 亲给的答案是C )

lunasea007

我觉得应该是c，因为题目中有提到价格昂贵，但也要买。机器的使用自然是用的越多损坏的可能性越高，所以投资的人自然要考虑这个。

田田叶子

谢谢！我也觉得是c

蚊子漫步

应该是C吧，时间长短没什么关系的 呀。

google了一下，貌似国外论坛也以C居多。