TOEFL Listening: ETS-TOEFL听力机经 - DO8H1NB6JN37KU8DP$

Why does the professor mention how well-informed people are about medical issues today? A. To illustrate how current technology can succeed in supporting human activities B. To contrast people's medical knowledge today with that of people in da Vinci's time C. To support a claim about the limitations of new computing D. To question whether people use computers appropriately