答案不确定或不唯一具有或然性的光学选择题,在近几年各地物理中考试卷中层出不穷,它具有检测学生知识基础、思维品质和物理方法的多重功能,对此不少同学往往举棋不定、顾此失彼,现介绍四种判断方法,供参考. The answer is uncertain or not with the probability of the optical multiple choice, in recent years all over the physical examination papers in an endless stream, it has to detect students knowledge base, thinking quality and physical methods of multiple functions, which many students often indecisive, In this regard, we will introduce four methods of judgment for reference.