Jawapan

2015-01-24T21:51:38+08:00
Blood doping is the practice of boosting the number of red blood cells in the bloodstream in order to enhance athletic performance. Because such blood cells carry oxygen from the lungs to the muscles, a higher concentration in the blood can improve an athlete's performance
2015-01-31T13:46:58+08:00
Blood doping is the practice of boosting the number of red blood cells in the bloodstream in order to enhance athletic perfomance.......Am I Right??sizter??