{"type":"rich","version":"1.0","title":"教案四：Covid-19","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/ZG3rWZ-I6DjyuNQY/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/646deb599f88e838f2b8d418\" frameborder=\"0\" allowfullscreen></iframe>"}