【单选题】听力原文:M: Have you done the lab for physiology yet—the one on taste? W: Yeah, it was kind of fun—mapping the taste buds. Didn't you think so? M: I'm doing it this afternoon. How long will it take? W: It...
A.
To see how certain chemicals produce different flavors.
B.
To determine if a person can distinguish salty and sweet solutions.