[讨论]99-6-1-25

McKinley: A double-blind study, in which neither the patient nor the primary researcher knows whether the patient is being given the drug being tested or a placebo, is the most effective procedure for test the efficacy of a drug. But we will not be able to perform such a study on this new drug, since the drug will have various effects on the patients’ bodies, which will make us aware of whether the patient are getting the drug or a placebo.

Engle: You can’t draw that conclusion at this point, for you are assuming you know what the outcome of the study will be.

Engle’s statement indicates that he is most likely interpreting McKinley’s remarks to be

D. referring to the drug’s therapeutic effects rather than to any known side effects.

看了真题解析，还是不理解。哪位能再帮我解释一下，多谢了！

McKinley: 1. Double-blind test is usually effective. 2. But using it on this new drug has some "effects", therefore would not recommend it.

Engle: is saying McKinley denied the double-blind test on this new drug because he knew the "outcome" of the test.

One(McKinley) is talking about the disadvantage (side-effect) of using double blind test on this new drug.

Another(Engle) is about the result of using the double blind test.