Cardiopulmonary resuscitation (CPR), also referred to as hands-free or preliminary cardiopulmonary resuscitation, means that professionals or non-professionals ensure airway patency, support breathing and circulation, maintain oxygen supply to patients' brains, hearts and other tissues, and maintain life.
The purpose and needs of parents to send their children to dance classes
1. What is the best age for children to start learning dance? A: In