Jiaoan VR simulation software is a kind of virtual reality simulation software, which is mainly used for training and drills in fire fighting, safety and other fields. It can simulate real scenes and situations, allowing users to conduct simulation operations and practice drills in a virtual environment, so as to improve users' skills and coping ability.

National examination software refers to the software related to the national civil service examination, which is mainly used for registration, examination and result inquiry of the national civil service examination. It can help candidates to register for the exam and check their scores more conveniently, but it does not involve specific exam content and operation.