解答自然科学选择题的理论依据仍然是自然科学的概念和规律,切忌乱猜.为了迅速正确解答选择题,在解题过程中要善于把各方面的知识结合起来,把多种方法结合起来.并用分析的方法对题目的含义、知识点进行研究.分析法是学好自然科学的一种重要方法,多用于综合性、灵活性较强的题目. The theoretical basis for answering natural science multiple-choice questions is still the concepts and laws of natural sciences and avoid guessing. In order to quickly and correctly answer multiple-choice questions, we must be good at combining all aspects of knowledge in the problem-solving process and combine various methods. And use the method of analysis to study the meaning and knowledge of the topic. Analytical method is an important method for learning the natural sciences. It is mostly used for comprehensive and flexible topics.