(03辽宁卷)人体在剧烈运动时肌肉细胞处于暂时相对缺氧状态,此

03辽宁卷)人体在剧烈运动时肌肉细胞处于暂时相对缺氧状态,此时其细胞所需的能量主要是由下列哪种物质分解提供的

A.二氧化碳                 B.葡萄糖                   C.酒精             D.乳酸

答案

答案:B 

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