試題詳解

32.People used to believe that exercise is essential for shedding pounds, but recent research reveals that exercise simultaneously stimulates hunger and in turn reduces the weight-loss effect. What keeps exercise from achieving the weight-loss benefits?
(A) People may eat more after exercise.
(B) It is hard to sustain the habit of taking exercise.
(C) People lose their appetite after exercise.
(D) It is not easy to burn calories by taking exercise.