The traditional treatment of strep infections has been a seven-day course of antibiotics, either penicillin or erythromycin. However, since many patients stop taking those drugs within three days, reinfection is common in cases where these drugs are prescribed. A new antibiotic requires only a three-day course of treatment. Therefore, reinfection will probably be less common in cases where the new antibiotic is prescribed than in cases where either penicillin or erythromycin is prescribed.
Which of the following, if true, most strengthens the argument?
A. Some of people who are allergic to penicillin are likely to be allergic to the new antibiotic.
B. A course of treatment with the new antibiotic costs about the same as a course of treatment with either penicillin or erythromycin.
C. The new antibiotic has been shown to be effective in eradicating bacterial infections other than strep.
D. Some physicians have already begun to prescribe the new antibiotic instead of penicillin or erythromycin for the treatment of some strep infections
E. Regardless of whether they take a traditional antibiotic or the new one, most patients feel fully recovered after taking the drug for three days.
答案是E 我选了D 为什么D不对啊？？？
D没有E好
1.D中用have already begun ，但是题干用reinfection will，是基于某种假设条件
2.提干中用in cases 。。。 than in cases 。。。，这个本来就给了一个假设，为什么还要现实情况呢？
解释有点牵强，还是期待高人解答吧
Answer E strengthens the argument by confirming an assumption that: for new drug, most patients will take it for 3days, which are necessary for them to recover.
(Just think, if patients would stop taking the new drug as they did for the traditional drugs, reinfection may be common too)
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