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一、实验方法: 1.实验对象: 华西医科大学实验动物中心提供的40支纯种日本大耳白兔,基本情况见表1。
First, the experimental methods: 1. Experimental Subjects: 40 purebred Japanese white rabbits provided by the Experimental Animal Center of West China Medical University, the basic situation shown in Table 1.