Q23:
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?
选C。
如果回答Yes,诊所的机器不如医院用得多,自然不能降低成本;
如果回答No,诊所的机器用得比医院的多,当然可以提高成本;
如果回答Yes,诊所的机器不如医院用得多,自然不能降低成本;
如果回答No,诊所的机器用得比医院的多,当然可以提高成本;
觉得虽然使用的多能降低成本,但题目中没看出来哪有这个方面的信息!
难道是常识?
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