Because of their simplicity, bipolar lead systems were the first to be used in clinical electrocardiography.因为它们简单, 双极导联最先用于临床心电图学.Objective To study electrocardiography diagnosis of ischemia in patients with ventricular...
Yoga can be used to strengthen the immune system.瑜伽能增强人体免疫系统。Yoga can remove fat, reduce hypertelorism, sculpture body, lithe body and reproducible thin physique!瑜珈可以消除脂肪, 减少赘肉, 雕塑体型,轻盈体态, 重现窈窕身形!I do two hours yoga ever...
她小时候是个羞怯的丑小鸭。She was a shy, ugly duckling of a child.他现在一副电影明星的模样, 小时候他可真是只丑小鸭.He's got the looks of a film star now, but he was a real ugly duckling as a child.那美女以前是个丑小鸭.That beauty once was an ugly duckling....