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.

其一是与行理论，基于“犯罪是行”这一法学中先验命题，对于行结论应当毋庸质疑，关键是如何对其进行合理说明。