What happened to the participants in the study led by Dr. Bray?(本题2.5分)
A、 They managed to get 15 percent of energy from protein.
B、 They were asked to eat different levels of calories.
C、 They were found to have stored the same amount of fat. √
D、 They were found to have stored different levels of protein.
出自:西安石油大学大学英语I(下)