{"type":"rich","version":"1.0","title":"数学","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/XbZo7efHa3_Tr3P4/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/5db668ede7c76b7fd3af73f8\" frameborder=\"0\" allowfullscreen></iframe>"}