【搬运KhanAcademy】循环系统疾病——Hypertension and blood vessel damage

[视频作者] fate灵羽

[视频时长] 4:36

[视频类型] 校园学习

https://www.youtube.com/watch?v=a3XcYsXQYaM http://www.khanacademy.org/science/healthcare-and-medicine Created by Tanner Marshall.