数学题浩如烟海 ,变化无穷 ,有些“题型各异”却“解法同宗” ;有些“形式相似 (同 )”却“解法全非” .我们不妨把前者称为“形异质同”题 ,把后者称为“形似 (同 )质异”题 .从哲学角度看 ,“形异质同”题反映了矛盾的普遍性 ,解此类题要求我们除去表象 ,看透本质 ,由此及彼 There are many problems in mathematics, and there are endless changes. Some “different types” but “solutions are the same”; some “forms are similar (the same)” but “solutions are all wrong.” We may as well call the former “different”, The latter is called the “similarity (identical) qualitative difference” problem. From the philosophical point of view, the question of “form heterogeneity” reflects the universality of contradictions. To solve such problems requires us to remove appearances, see essence, and thus