{"type":"rich","version":"1.0","description":"根据地形的特征识别常见地形。","title":"认识地形","width":720,"html":"<iframe src=\"https://arcade.padlet.com/embed/WvKPZ4VRjg\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","height":480,"provider_name":"Padlet Arcade","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1783992788992&hashid=WvKPZ4VRjg&key=social-preview-image-v4","provider_url":"https://arcade.padlet.com"}