| 1. | 24 male wistar rats ( provided by military medical academy animal center ) were devided randomly into 6 groups ( n = 4 ) : the ground control group , the 3 000m control group , the fulminating altitude hypoxia group , the group breathing 90 % enriched oxygen , the group breathing 100 % oxygen , the group breathing 50 % enriched oxygen
实验动物为雄性wister大鼠24只（军事医学科学院动物中心提供） ，随机分为6组：地面对照组、 3000m对照组。 12000tn缺氧组、 12000m吸90富氧气体防护组、 12000in吸纯氧防护组、 12000m吸50富氧气体防护组。 |
