Q40:

Which of the following most logically completes the argument?

A new drug, taken twice daily for one month, is an effective treatment for a certain disease. The drug now most commonly prescribed for the disease occasionally has serious side effects such as seizures; in field tests, the new drug’s side effects, though no worse than mild nausea, turned out to be much more frequent. Nevertheless, the new drug is clearly preferable as a treatment, since _____.

A. people who experience nausea are prone to discontinue use of the new drug prematurely

B. …

C. …

D. …

E. there is a nonprescription medication that when taken with the new drug prevents the onset of nausea

Answer: E

A好像更有道理吧，因为他说出现有呕吐的人就不倾向与用这种药，那剩下的人就可以用了，而医院也不用担心他们会有SIDE-EFFECTS了，不是吗？

A is incorrect..

new drug->much more frequent nausea->stop using the new drug (the logic of A)->the new drug is useless, a conclusion that is against "new drug is clearly preferable as a treatment"