溺水自保自救
https://www.youtube.com/watch?v=mPhIEeTCZe4
https://www.youtube.com/watch?v=D20dUWmxexw
https://www.youtube.com/watch?v=6VZBFaLANZ4
https://www.youtube.com/watch?v=JpesOLfFp0Q
https://www.youtube.com/watch?v=VeUEm6I-AK0
https://www.youtube.com/watch?v=juQzRfakQW8
水上救生 
https://www.youtube.com/watch?v=bVFcOeA4lzE&list=PLia00H26gEFWezgxiUU0k48kyxsh00XTv