1, clear operation steps, skilled movements, effective implementation of Heimlich first aid method. This comment means that after training, students have a deep understanding of the operation steps of Heimlich's first aid method and can perform related actions quickly and accurately in actual first aid.

2. Master the operation skills of Heimlich first aid method, and perform well, which meets the actual first aid needs. This evaluation shows that the trainees have performed well in Heimlich first aid training, mastered the operation skills, and can quickly carry out treatment in an emergency.