{"ok":true,"question":{"id":21724,"question_uuid":"ec73e3aa-bcaa-4901-a594-48ad13cdd78c","job_id":3,"source_file":"人教版/七下/2026江苏七年级期末数学试卷+答案50.pdf","source_page_start":5,"source_page_end":5,"source_bbox":"[30.0, 469.47, 400.87, 670.44]","subject_code":"math","grade_level":"SENIOR","tree_code":"KT_SENIOR_MATH_STANDARD","question_type":"single_choice","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"如图所示，∠BAC = 90∘, AD ⊥BC于D，则下列结论中错误的为( ).\", \"type\": \"text\"}, {\"kind\": \"embedded_image\", \"type\": \"figure\", \"width\": 708, \"height\": 374, \"sha256\": \"e8e27f4ab1ebd13a3745b7311506e3612abdc904c747294c9a3af3bb02a3811d\", \"caption\": \"\", \"asset_key\": \"math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png\", \"public_url\": \"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png\", \"source_bbox\": [30.0, 501.9209899902344, 171.6999969482422, 575.3099975585938], \"source_page\": 5}, {\"type\": \"option\", \"label\": \"A\", \"blocks\": [{\"text\": \"AC ⊥AB\", \"type\": \"text\"}], \"source_bbox\": [30.0, 610.67, 109.7, 623.64], \"source_page\": 5}, {\"type\": \"option\", \"label\": \"B\", \"blocks\": [{\"text\": \"点C到AB的垂线段是线段CA\", \"type\": \"text\"}], \"source_bbox\": [30.0, 626.27, 226.25, 639.24], \"source_page\": 5}, {\"type\": \"option\", \"label\": \"C\", \"blocks\": [{\"text\": \"点A到BC的距离是线段AD\", \"type\": \"text\"}], \"source_bbox\": [30.0, 641.87, 215.45, 654.84], \"source_page\": 5}, {\"type\": \"option\", \"label\": \"D\", \"blocks\": [{\"text\": \"线段CD的长度是点C到AD的距离\", \"type\": \"text\"}], \"source_bbox\": [30.0, 657.47, 254.93, 670.44], \"source_page\": 5}], \"source\": {\"bbox\": [30.0, 469.47, 400.87, 670.44], \"file\": \"人教版/七下/2026江苏七年级期末数学试卷+答案50.pdf\", \"regions\": [{\"bbox\": [30.0, 469.47, 400.87, 670.44], \"page\": 5}], \"section\": \"match\", \"page_end\": 5, \"page_start\": 5, \"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\": \"SENIOR\", \"number_label\": \"5\", \"subject_code\": \"math\", \"question_type\": \"single_choice\", \"content_sha256\": \"90a33eb4c6913d4bcbd4aa5f813b814a07e22ba8ed97c7d1cc52623107154abf\"}","body_html":"<div>如图所示，∠BAC = 90∘, AD ⊥BC于D，则下列结论中错误的为( ).<img class=\"question-figure\" src=\"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png\" style=\"width:188.9px!important;max-width:100%;height:auto\" alt=\"\" title=\"点击查看原图\"><br>A. AC ⊥AB<br>B. 点C到AB的垂线段是线段CA<br>C. 点A到BC的距离是线段AD<br>D. 线段CD的长度是点C到AD的距离</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":0.933,"error_message":"QA failed: SOLVER,CRITIC,COHERENCE,ANSWER","published_question_id":null,"content_sha256":"90a33eb4c6913d4bcbd4aa5f813b814a07e22ba8ed97c7d1cc52623107154abf","created_at":"2026-09-25T03:23:24","updated_at":"2026-09-25T03:33:59","answer_missing":true,"formula_fallback":false,"_number":"5","_section":"match","_section_label":"智适化匹配练习   ★ 交互式系统学习"},"assets":[{"id":4724,"asset_uuid":"dfcc3b8fd7ee4aad85decaf2bfee6991","job_id":3,"import_question_id":21724,"asset_type":"embedded_image","source_file":"2026江苏七年级期末数学试卷+答案50.pdf","source_page":5,"source_bbox":"[30.0, 501.92, 171.7, 575.31]","sha256":"e8e27f4ab1ebd13a3745b7311506e3612abdc904c747294c9a3af3bb02a3811d","local_path":"/www/wwwroot/tikupdfpng.mtwlkj.net_5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png","asset_key":"math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png","public_url":"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png","width":708,"height":374,"qa_status":"PENDING","created_at":"2026-09-25T03:29:19","safe_public_url":"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/ec73e3aa-bcaa-4901-a594-48ad13cdd78c/e8e27f4ab1eb.png"}],"knowledge":[],"audits":[{"id":429586,"import_question_id":21724,"audit_type":"STRUCTURE","auditor_name":"structure-rule","status":"PASS","score":0.9,"input_snapshot":"如图所示，∠BAC = 90∘, AD ⊥BC于D，则下列结论中错误的为( ). 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