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应用各种研究方法来进行动物学和科研究工作,以达到收集事实材料的目的,研究的方法主要有下列几种。 1.实验方法——在实验室内分成几个实验组进
Application of various research methods for zoology and research work in order to achieve the purpose of collecting factual material, research methods are the following. 1. Experimental methods - divided into several experimental groups in the laboratory into