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高中生物教学中自交与自由交配知识点,学生掌握难度较大,通过对一个例题及多个变式训练的多种方法的解答,加深学生对该知识点的理解和掌握。
High school biology teaching self-intersecting knowledge and free mate points, students grasp more difficult, through a variety of examples and a variety of training methods to answer a variety of ways to deepen the students to understand and master the knowledge points.