resistance training and weight lifting. None of them worked to his satisfaction. The story goes that he hit upon his methods while watching animals stretch. He pointed out that they don't use barbells -- they tense theirmusclesand then move against that...
B. weight lifting can help us move easily C. busy streets are not good places for running D. three kinds of exercises are mentioned 【5】 Why do we need to do warm-up exercise? A. To help us move easily B. To make our bodies strong C. To help us exercise better D.To help us...