Physician: Goliath Pharmaceutical Company has claimed that the recent increase in the number of diagnosed cases of Disease X shows that the disease is increasing in virulence. This is a questionable argument, just as it would be incorrect to claim that our increased success rate in treating patients with Disease X is due to the disease becoming less virulent. The real cause of both increase is a newly introcuted screening process that reduces misdiagnoses of patients infected with the Disease X pathogen.
The Physician's statements, if accurate, provide the most support for which of the following as a conclusion?
A. The new screening procedure is the reason that more people are requesting to be tested for Disease X
B. It is not possible to determine that a patient has Disease X without using the new screening process
C. The increase in diagnosed cases of Disease X is proportional to the increase in the number of clinics utilizing the new screen procedure
D. The new screening process occasionally diagnoses patients with Disease X when they are actually suffering from another illness
E. The increase in the number of diagnosed cases of Disease X is not due to an increase in the disease's virulence
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书中给出正确答案：E
疑问1：为什么选E？ 文章中提到了number跟rate都提升了，但是E只提到了number，难道不是以偏概全吗？
疑问2：书中分析，“This is a questionable argument”是conclusion……这点我不能理解，我个人认为最后一句是conclusion