单项选择题
A.Anti-animal-abuse demonstrations. B.Surveying the Atlantic Ocean floor. C.Anti-nuclear campaigns. D.Removing industrial waste.
A.Effects of obesity on people’s health. B.The link between lifestyle and obesity. C.New explanations for the obesity epidemic. D.Possible ways to combat the obesity epidemic.
A.Improved mental functioning. B.Increased susceptibility to disease. C.Speeding up of blood circulation. D.Reduction of stress-related hormones.