{"ok":true,"question":{"id":21125,"question_uuid":"772aa340-5180-4280-96c3-3326b8d7c42b","job_id":4,"source_file":"A中考/2026江苏中考期末数学试卷+答案835.pdf","source_page_start":2,"source_page_end":3,"source_bbox":"[45.0, 629.27, 553.18, 297.05]","subject_code":"math","grade_level":"SENIOR","tree_code":"KT_SENIOR_MATH_STANDARD","question_type":"comprehensive","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"如图,△ABC内接于⊙O, ∠ABC = 45°,⊙O的切线AD与BC延长线交于点D, 点E是AD上一点 , CE = AE, 连接AO并延长交BC于点F. 填空题，每题6 分\", \"type\": \"text\"}, {\"type\": \"subquestion\", \"index\": 1, \"blocks\": [{\"text\": \"求证: CE是⊙O的切线;\", \"type\": \"text\"}]}, {\"type\": \"subquestion\", \"index\": 2, \"blocks\": [{\"text\": \"若DE = 2AE = 4, 求DF的长．\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [45.0, 629.27, 553.18, 297.05], \"file\": \"A中考/2026江苏中考期末数学试卷+答案835.pdf\", \"regions\": [{\"bbox\": [45.0, 629.27, 553.18, 687.72], \"page\": 2}, {\"bbox\": [78.02, 280.45, 190.28, 297.05], \"page\": 3}], \"section\": \"generic\", \"page_end\": 3, \"page_start\": 2, \"section_label\": \"\", \"answer_regions\": [], \"answer_original\": \"\", \"solution_original\": \"\"}, \"version\": 1, \"grade_level\": \"SENIOR\", \"number_label\": \"6\", \"subject_code\": \"math\", \"question_type\": \"comprehensive\", \"content_sha256\": \"42907b2c6a3bb4a7246c86b66e69aa66dbdf158dc4896520c82fcf4af9ba04c8\"}","body_html":"<div>如图,△ABC内接于⊙O, ∠ABC = 45°,⊙O的切线AD与BC延长线交于点D, 点E是AD上一点 , CE = AE, 连接AO并延长交BC于点F. 填空题，每题6 分<br>（1）求证: CE是⊙O的切线;<br>（2）若DE = 2AE = 4, 求DF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":0.925,"error_message":"QA failed: COHERENCE,ANSWER","published_question_id":null,"content_sha256":"42907b2c6a3bb4a7246c86b66e69aa66dbdf158dc4896520c82fcf4af9ba04c8","created_at":"2026-09-24T22:59:49","updated_at":"2026-09-24T23:13:09","answer_missing":true,"formula_fallback":false,"_number":"6","_section":"generic","_section_label":""},"assets":[],"knowledge":[],"audits":[{"id":416112,"import_question_id":21125,"audit_type":"STRUCTURE","auditor_name":"structure-rule","status":"PASS","score":0.9,"input_snapshot":"如图,△ABC内接于⊙O, ∠ABC = 45°,⊙O的切线AD与BC延长线交于点D, 点E是AD上一点 , CE = AE, 连接AO并延长交BC于点F. 填空题，每题6 分 (1) 求证: CE是⊙O的切线; (2) 若DE = 2AE = 4, 求DF的长．","result_json":"{\"ok\": true, \"rule\": \"clean-override\", \"issues\": [], \"confidence\": 0.9}","created_at":"2026-09-24T23:11:49"},{"id":416113,"import_question_id":21125,"audit_type":"FORMULA","auditor_name":"formula-auditor","status":"PASS","score":1.0,"input_snapshot":"","result_json":"{\"note\": \"无公式块\", \"checked\": 0}","created_at":"2026-09-24T23:11:49"},{"id":416114,"import_question_id":21125,"audit_type":"KNOWLEDGE","auditor_name":"knowledge-auditor","status":"WARN","score":0.0,"input_snapshot":"如图,△ABC内接于⊙O, ∠ABC = 45°,⊙O的切线AD与BC延长线交于点D, 点E是AD上一点 , CE = AE, 连接AO并延长交BC于点F. 填空题，每题6 分 (1) 求证: CE是⊙O的切线; (2) 若DE = 2AE = 4, 求DF的长．","result_json":"{\"picks\": [], \"tree_code\": \"KT_SENIOR_MATH_STANDARD\", \"candidates\": 0, \"classifier_version\": null}","created_at":"2026-09-24T23:11:49"},{"id":416118,"import_question_id":21125,"audit_type":"VISION","auditor_name":"vision-auditor","status":"PASS","score":0.9,"input_snapshot":"题干：\n如图,△ABC内接于⊙O, ∠ABC = 45°,⊙O的切线AD与BC延长线交于点D, 点E是AD上一点 , CE = AE, 连接AO并延长交BC于点F. 填空题，每题6 分 （1）求证: CE是⊙O的切线; （2）若DE = 2AE = 4, 求DF的长．\n答案：\n\n解析：\n","result_json":"{\"ok\": true, \"hard\": false, \"issues\": [], \"confidence\": 0.9, \"suggestions\": [\"建议补充图形，以便更直观理解题意\"]}","created_at":"2026-09-24T23:12:18"},{"id":416126,"import_question_id":21125,"audit_type":"SOLVER","auditor_name":"blind-solver","status":"PASS","score":0.8,"input_snapshot":"如图,△ABC内接于⊙O, ∠ABC = 45°,⊙O的切线AD与BC延长线交于点D, 点E是AD上一点 , CE = AE, 连接AO并延长交BC于点F. 填空题，每题6 分 (1) 求证: CE是⊙O的切线; (2) 若DE = 2AE = 4, 求DF的长．","result_json":"{\"basis\": \"由DE=2AE=4得AE=2, DE=4. 因CE=AE=2, 且AD为⊙O切线, 故∠BAD=∠BCA (弦切角定理). 又∠ABC=45°, 可推得∠BAC=90°-∠BCA. 连接AO并延长交BC于F, 由AO为半径且AD为切线, 得AO⊥AD. 在Rt△ADF中, 利用相似或三角函数关系, 结合CE=AE及角度条件, 可求得DF=3.\", \"answer\": \"DF = 3\", \"confidence\": 0.8, \"handout_chars\": 0}","created_at":"2026-09-24T23:12:44"},{"id":416127,"import_question_id":21125,"audit_type":"CRITIC","auditor_name":"critic","status":"PASS","score":1.0,"input_snapshot":"来源答案: || 盲解:DF = 3","result_json":"{\"ok\": true, \"issues\": [], \"merged\": true, \"confidence\": 1.0}","created_at":"2026-09-24T23:12:44"},{"id":416128,"import_question_id":21125,"audit_type":"SYMBOLIC","auditor_name":"symbolic-auditor","status":"WARN","score":0.5,"input_snapshot":"答案: || 盲解:DF = 3","result_json":"{\"checks\": [], \"detail\": {\"reason\": \"未提取到来源答案\"}, \"status\": \"WARN\", \"applicable\": true}","created_at":"2026-09-24T23:12:44"},{"id":416131,"import_question_id":21125,"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\": [\"解析为空，缺少必要的推导步骤和证明过程。\"], \"confidence\": 0.9, \"equation_checks\": []}","created_at":"2026-09-24T23:13:09"},{"id":416132,"import_question_id":21125,"audit_type":"QUALITY_GATE","auditor_name":"quality-gate","status":"FAIL","score":0.925,"input_snapshot":"","result_json":"{\"warnings\": [], \"graded_gate\": true, \"hard_failed\": [\"COHERENCE\", \"ANSWER\"]}","created_at":"2026-09-24T23:13:09"}]}