{"ok":true,"question":{"id":21054,"question_uuid":"b1fde2bf-71a1-4683-981a-b7059f7725ef","job_id":4,"source_file":"A中考/2026江苏中考期末数学试卷+答案825.pdf","source_page_start":6,"source_page_end":6,"source_bbox":"[30.0, 250.14, 543.68, 309.91]","subject_code":"math","grade_level":"JUNIOR","tree_code":"KT_JUNIOR_MATH_STANDARD","question_type":"comprehensive","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"如图,在Rt △ABC中, ∠ACB = 90°, 点E在AC上, 以CE为直径的⊙O经过AB上的点D, 且BD = BC．\", \"type\": \"text\"}, {\"kind\": \"embedded_image\", \"type\": \"figure\", \"width\": 708, \"height\": 685, \"sha256\": \"334aa7797248fec845569b76f5faf48eb69c8314188bbc77a829a619c3585238\", \"caption\": \"\", \"asset_key\": \"math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/b1fde2bf-71a1-4683-981a-b7059f7725ef/334aa7797248.png\", \"public_url\": \"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/b1fde2bf-71a1-4683-981a-b7059f7725ef/334aa7797248.png\", \"source_bbox\": [30.0, 315.3499755859375, 171.6999969482422, 462.0899658203125], \"source_page\": 6}, {\"type\": \"subquestion\", \"index\": 1, \"blocks\": [{\"text\": \"求证: AB是⊙O的切线;\", \"type\": \"text\"}]}, {\"type\": \"subquestion\", \"index\": 2, \"blocks\": [{\"text\": \"若AD = 8, AE = 4, 求CE的长．\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [30.0, 250.14, 543.68, 309.91], \"file\": \"A中考/2026江苏中考期末数学试卷+答案825.pdf\", \"regions\": [{\"bbox\": [30.0, 250.14, 543.68, 309.91], \"page\": 6}], \"section\": \"match\", \"page_end\": 6, \"page_start\": 6, \"section_label\": \"智适化匹配练习   ★ 交互式系统学习\", \"answer_regions\": []}, \"version\": 1, \"grade_level\": \"JUNIOR\", \"number_label\": \"1\", \"subject_code\": \"math\", \"question_type\": \"comprehensive\", \"content_sha256\": \"1b84b75246cd33297e6192e21be0d02270ea72a446c68b7fe109d4124d333962\"}","body_html":"<div>如图,在Rt △ABC中, ∠ACB = 90°, 点E在AC上, 以CE为直径的⊙O经过AB上的点D, 且BD = BC．<img class=\"question-figure\" src=\"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/b1fde2bf-71a1-4683-981a-b7059f7725ef/334aa7797248.png\" style=\"width:188.9px!important;max-width:100%;height:auto\" alt=\"\" title=\"点击查看原图\"><br>（1）求证: AB是⊙O的切线;<br>（2）若AD = 8, AE = 4, 求CE的长．</div>","answer_html":"","ways_html":"","explain_html":null,"difficulty":2,"score":null,"year":null,"parse_status":"PARSED","qa_status":"QUARANTINED","retry_count":0,"final_score":null,"error_message":"处理异常: LLM call failed after retries: HTTPConnectionPool(host='127.0.0.1', port=8092): Read timed out. 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