Many athletes inhale pure oxygen after exercise in an attempt to increase muscular reabsorption of oxygen. Measured continuously after exercise, however, the blood lactate levels of athletes who inhale pure oxygen are practically identical, on average, to those of athletes who breathe normal air. The lower the blood lactate level is, the higher the muscular reabsorption of oxygen is.
If the statements above are all true, they most strongly support which of the following conclusions?
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AAthletes' muscular reabsorption of oxygen is not increased when they inhale pure oxygen instead of normal air.
分析该选项
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BHigh blood lactate levels cannot be reduced.
分析该选项
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CBlood lactate levels are a poor measure of oxygen reabsorption by muscles.
分析该选项
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DThe amount of oxygen reabsorbed by an athlete's muscles always remains constant.
分析该选项
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EThe inhaling of pure oxygen has no legitimate role in athletics.
分析该选项
显示答案
正确答案: A