TOEFL iBT Listening

Lecture / Conversation

TOEFL · Lecture / Conversation

Listen to part of a lecture and answer the question.

How does the professor correct the student's understanding of the placebo effect?

Placebos work only on patients who already know they are fake.The placebo effect is entirely imagined and has no physical basis.Placebos can produce real, measurable physical responses in the body.Placebos are more powerful than any actual medication.

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