A. the water lost in exercising can be replaced with ordinary tap water(无关项)
B. the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb(正确,指出再多无益.SO 那种饮料就没有市场了)
C. world-class athletes turn in record performance without such water(无关项,一般与权威人士相关也就无关了)
D. frequent physical exercise increases the body’s ability to take in and use oxygen (无关项)
E. lack of oxygen is not the only factor limiting human physical performance(已包含文中第一句) |