{"type":"rich","version":"1.0","title":"帝国主義の動機","description":"帝国主義と植民地主義における、政治的、経済的、社会的／文化的動機を12項目に分類する活動。","author_name":"Padlet TA","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1767922011038&hashid=7qjeXX6yrl","html":"<iframe src=\"https://arcade.padlet.com/embed/7qjeXX6yrl\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}