方法取大鼠40只，随机分成正常对照组、低剂量组、高剂量组和模型组，每组10只。
Methods 40 rats were randomly divided into the normal group, the low-dose group, the high-dose group and the model group, 10 rats per group.
第三，阐述产生均匀分布随机序列的两种方法：平方取中法和线性同余法的基本原理。
Third, two algorithms for producing uniform distribution are analysed thoroughly by us—mid-square method and linear congruential method.
方法取健康SD大鼠40只，雌雄各半，随机分为正常组、假手术组、模型组、电针组。
MethodsHealthy SD rats 40, half male and half female, were randomly divided into normal group, sham-operated group, model group, electro-acupuncture group.
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