[裸机]柒月伍日起（共158只，7/24- 16:00更新）

LIJIAXUN

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
选哪个啊

fionaz426

密码多少啊？

coolmcfly

楼主大好人！膜拜！

iamvickie

kikitable

Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally deer ticks pick up the bacterium while in the larval stage from feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline.
Which of the following, if true, most strengthens the argument?

A.    Ticks do not suffer any adverse consequences from carrying the bacterium that causes Lyme disease in humans.
B.    There are no known cases of a human’s contracting Lyme disease through contact with white-footed mice.
C.    A deer tick feeds only once while in the larval stage.
D.    A single host animal can be the source of bacterium for many tick larvae.
E.    None of the other species on which deer tick larvae feed harbor other bacteria that ticks transmit to humans

GWD这道原题貌似跟JJ第3题是一样的，楼长可以看看^_^

huangsuzy

楼主威武！

89hang

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
选哪个啊

-- by 会员 LIJIAXUN (2011/7/15 22:58:20)

题目说通过visual inspection不能reliably可靠地把skin discoloration和skin cancer区分开来,也就是说无法确认到底是哪一种病.所以在clinic的人需要从患者身上提取skin tissue来做测试.而在W医院,检测的成本降下来了,是因为买了一台新的机器,这台新机器来检测skin cancer时和clinic拿skin tissue来做测试检测是一样可靠的,所以clinic诊所也要买一台这个机器来减少测试的成本
C说的是机器在诊所的使用会不会比在医院要少得多,担心的是买了机器,但是使用不多,结果没有减少成本.C是对的.

sunnyroc

我是菜鸟，弱弱的问一句，为啥逻辑没有考古呢？ 就像阅读那样。。。很多逻辑都是只言片语这咋准备呢。。。。求教了

FATJERRY

谢谢分享

veronica0421

加油吧