{"ok":true,"question":{"id":21099,"question_uuid":"ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8","job_id":4,"source_file":"A中考/2026江苏中考期末数学试卷+答案830.pdf","source_page_start":6,"source_page_end":6,"source_bbox":"[30.0, 169.47, 552.18, 244.84]","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, 点D为斜边上AB一点, 以BD为直径的⊙O交AC于点E,⊙O交BC于点F, ⏜ 且点 E 是DF的中点.\", \"type\": \"text\"}, {\"kind\": \"embedded_image\", \"type\": \"figure\", \"width\": 708, \"height\": 417, \"sha256\": \"2128d55b9a98101765dd304ad7e320c9d3357b1db9a86a1cab921e77a08957bf\", \"caption\": \"\", \"asset_key\": \"math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png\", \"public_url\": \"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png\", \"source_bbox\": [30.0, 252.1669921875, 171.6999969482422, 332.6499938964844], \"source_page\": 6}, {\"type\": \"subquestion\", \"index\": 1, \"blocks\": [{\"text\": \"求证: AC是⊙O的切线;\", \"type\": \"text\"}]}, {\"type\": \"subquestion\", \"index\": 2, \"blocks\": [{\"text\": \"若CE = 4, CF = 2, 求BD的长度．\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [30.0, 169.47, 552.18, 244.84], \"file\": \"A中考/2026江苏中考期末数学试卷+答案830.pdf\", \"regions\": [{\"bbox\": [30.0, 169.47, 552.18, 244.84], \"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\": [], \"answer_original\": \"\", \"solution_original\": \"\"}, \"version\": 1, \"grade_level\": \"JUNIOR\", \"number_label\": \"1\", \"subject_code\": \"math\", \"question_type\": \"comprehensive\", \"content_sha256\": \"4c491141fff744cb0a21121c9c0dc2180110f732b906c10deb920ce01d449c99\"}","body_html":"<div>如图,在Rt △ABC中, 点D为斜边上AB一点, 以BD为直径的⊙O交AC于点E,⊙O交BC于点F, ⏜ 且点 E 是DF的中点.<img class=\"question-figure\" src=\"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png\" style=\"width:188.9px!important;max-width:100%;height:auto\" alt=\"\" title=\"点击查看原图\"><br>（1）求证: AC是⊙O的切线;<br>（2）若CE = 4, CF = 2, 求BD的长度．</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":0.917,"error_message":"QA failed: SOLVER,CRITIC,COHERENCE,ANSWER","published_question_id":null,"content_sha256":"4c491141fff744cb0a21121c9c0dc2180110f732b906c10deb920ce01d449c99","created_at":"2026-09-24T22:35:08","updated_at":"2026-09-24T22:48:13","answer_missing":true,"formula_fallback":false,"_number":"1","_section":"match","_section_label":"智适化匹配练习   ★ 交互式系统学习"},"assets":[{"id":4606,"asset_uuid":"29247203881b4724a5f83cd2762f53d4","job_id":4,"import_question_id":21099,"asset_type":"embedded_image","source_file":"2026江苏中考期末数学试卷+答案830.pdf","source_page":6,"source_bbox":"[30.0, 252.17, 171.7, 332.65]","sha256":"2128d55b9a98101765dd304ad7e320c9d3357b1db9a86a1cab921e77a08957bf","local_path":"/www/wwwroot/tikupdfpng.mtwlkj.net_5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png","asset_key":"math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png","public_url":"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png","width":708,"height":417,"qa_status":"PENDING","created_at":"2026-09-24T22:40:26","safe_public_url":"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/ea1e4cab-3cd7-4f4e-a1ef-1d65cfc45ab8/2128d55b9a98.png"}],"knowledge":[],"audits":[{"id":415137,"import_question_id":21099,"audit_type":"STRUCTURE","auditor_name":"structure-rule","status":"PASS","score":0.9,"input_snapshot":"如图,在Rt △ABC中, 点D为斜边上AB一点, 以BD为直径的⊙O交AC于点E,⊙O交BC于点F, ⏜ 且点 E 是DF的中点. 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[图] (1) 求证: AC是⊙O的切线; (2) 若CE = 4, CF = 2, 求BD的长度．","result_json":"{\"picks\": [], \"tree_code\": \"KT_JUNIOR_MATH_STANDARD\", \"candidates\": 0, \"classifier_version\": null}","created_at":"2026-09-24T22:42:03"},{"id":415153,"import_question_id":21099,"audit_type":"VISION","auditor_name":"vision-auditor","status":"PASS","score":0.95,"input_snapshot":"题干：\n如图,在Rt △ABC中, 点D为斜边上AB一点, 以BD为直径的⊙O交AC于点E,⊙O交BC于点F, ⏜ 且点 E 是DF的中点. （1）求证: AC是⊙O的切线; （2）若CE = 4, CF = 2, 求BD的长度．\n答案：\n\n解析：\n","result_json":"{\"ok\": true, \"hard\": false, \"issues\": [], \"confidence\": 0.95, \"suggestions\": [\"建议在题干中明确‘⊙O交BC于点F’后补充‘且F在B、C之间’，以避免图形理解歧义（当前图已体现，但文字未明示）\", \"解析部分缺失，需补充完整推导过程（如连接OE、OF，证明∠OEC=90°；利用切割线定理和勾股定理求BD）\"]}","created_at":"2026-09-24T22:43:43"},{"id":415177,"import_question_id":21099,"audit_type":"SOLVER","auditor_name":"blind-solver","status":"WARN","score":0.4,"input_snapshot":"如图,在Rt △ABC中, 点D为斜边上AB一点, 以BD为直径的⊙O交AC于点E,⊙O交BC于点F, ⏜ 且点 E 是DF的中点. 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[图] (1) 求证: AC是⊙O的切线; (2) 若CE = 4, CF = 2, 求BD的长度．","result_json":"{\"note\": \"Critic 未返回结果\"}","created_at":"2026-09-24T22:47:31"},{"id":415179,"import_question_id":21099,"audit_type":"SYMBOLIC","auditor_name":"symbolic-auditor","status":"WARN","score":0.5,"input_snapshot":"答案: || 盲解:","result_json":"{\"checks\": [], \"detail\": {\"reason\": \"未提取到来源答案\"}, \"status\": \"WARN\", \"applicable\": true}","created_at":"2026-09-24T22:47:31"},{"id":415181,"import_question_id":21099,"audit_type":"COHERENCE","auditor_name":"coherence-auditor","status":"FAIL","score":0.9,"input_snapshot":"答案: || 解析:","result_json":"{\"ok\": false, \"which\": [\"solution\"], \"issues\": [\"缺少解析内容\", \"缺少答案内容\"], \"confidence\": 0.9, \"equation_checks\": []}","created_at":"2026-09-24T22:48:13"},{"id":415182,"import_question_id":21099,"audit_type":"QUALITY_GATE","auditor_name":"quality-gate","status":"FAIL","score":0.917,"input_snapshot":"","result_json":"{\"warnings\": [\"SOLVER\"], \"graded_gate\": true, \"hard_failed\": [\"CRITIC\", \"COHERENCE\", \"ANSWER\"]}","created_at":"2026-09-24T22:48:13"}]}