游泳不仅是一项很好的健身运动,也是盛夏避暑的好方法。但由于各种原因,意外溺水的事故时有发生。溺水,指人淹没于水中,由于呼吸道被水、污泥、杂草等杂质阻塞,喉头、气管发生反射性痉挛,引起窒息和缺氧,甚至死亡。溺水者症状:面部青紫、肿胀、双眼充血,口腔、鼻孔和气管充满血性泡 Swimming is not only a good exercise, but also a good way to go summer. However, due to various reasons, accidental drowning accidents have occurred. Drowning, refers to the submerged in the water, due to respiratory tract obstruction by water, sludge, weeds and other impurities, larynx, tracheal reflex spasm, causing asphyxia and hypoxia, and even death. Drowning symptoms: facial bruising, swelling, congestion of both eyes, mouth, nose and trachea filled with bloody bubbles