Since it is a priori proposition in the science of criminal law that a crime is a actus reus, omission undoubtedly has the nature of actus reus-the crux is to explain it reasonably.

其一是不作为与行为理论，基“是行为”这一刑法学中的先验命，不作为行为性的结论应当毋庸质疑，关键是如何其进行合理说明。