The range of immune response in a large random population of animals tends to fellow a normal distribution . 在一个随机挑选的大的动物群体中，免疫应答的强弱是呈正态分布的。
2.
Doppler flow study of lateral calcaneal artery was performed on 60 random population and 44 diabetes mellitus cases with or without foot ulcers 六十位随机族群及四十四位有或无足部溃疡的糖尿病患者接受外侧跟骨动脉超音波血流测试。
