{"ok":true,"question":{"id":21728,"question_uuid":"4ce7a4e2-d972-4518-bc5a-105403acce74","job_id":3,"source_file":"人教版/七下/2026江苏七年级期末数学试卷+答案55.pdf","source_page_start":1,"source_page_end":1,"source_bbox":"[30.22, 382.43, 560.86, 510.29]","subject_code":"math","grade_level":"SENIOR","tree_code":"KT_SENIOR_MATH_STANDARD","question_type":"single_choice","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"AO\\\\perp BO\"}, {\"text\": \"，当光线\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"CD\"}, {\"text\": \"射向镜面\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"OB\"}, {\"text\": \"时，经过两次反射后，光线\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"EF\"}, {\"text\": \"沿平行于\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"CD\"}, {\"text\": \"的方向射出，若\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\angle 1 = 50^{\\\\circ}\"}, {\"text\": \"，则\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\angle 2\"}, {\"text\": \"的度数是( ).\", \"type\": \"text\"}, {\"kind\": \"embedded_image\", \"type\": \"figure\", \"width\": 520, \"height\": 264, \"sha256\": \"bbf2d2ef8baaa596f1f7547ec839a192e3f5a5552b904218067942285973c451\", \"caption\": \"\", \"asset_key\": \"math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png\", \"public_url\": \"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png\", \"source_bbox\": [30.21787452697754, 403.115234375, 126.6787567138672, 453.1319885253906], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"A\", \"blocks\": [{\"text\": \"20∘\", \"type\": \"text\"}], \"source_bbox\": [42.47, 473.04, 53.7, 482.73], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"B\", \"blocks\": [{\"text\": \"30∘\", \"type\": \"text\"}], \"source_bbox\": [42.47, 482.22, 53.7, 491.92], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"C\", \"blocks\": [{\"text\": \"40∘\", \"type\": \"text\"}], \"source_bbox\": [42.47, 491.41, 53.7, 501.11], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"D\", \"blocks\": [{\"text\": \"50∘\", \"type\": \"text\"}], \"source_bbox\": [42.47, 500.6, 53.7, 510.29], \"source_page\": 1}, {\"type\": \"answer\", \"blocks\": [{\"text\": \"C\", \"type\": \"text\"}]}, {\"type\": \"solution\", \"blocks\": [{\"text\": \"根据光的反射定律，入射角等于反射角。在△OBE中，∠OBE = 90° - ∠1 = 40°，因此∠OEB = 40°。由于EF∥CD，根据平行线的性质，∠2 = ∠OEB = 40°。\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [30.22, 382.43, 560.86, 510.29], \"file\": \"人教版/七下/2026江苏七年级期末数学试卷+答案55.pdf\", \"regions\": [{\"bbox\": [30.22, 382.43, 560.86, 510.29], \"page\": 1}], \"section\": \"generic\", \"page_end\": 1, \"page_start\": 1, \"section_label\": \"\", \"answer_regions\": [], \"answer_original\": \"\", \"solution_original\": \"\"}, \"version\": 1, \"grade_level\": \"SENIOR\", \"number_label\": \"3\", \"subject_code\": \"math\", \"question_type\": \"single_choice\", \"content_sha256\": \"56e22cba7f30c7dacab3548bd21d353fa56fd0f85c5a0cf8eff8a400373114ec\"}","body_html":"<div>自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜\\(AO\\perp BO\\)，当光线\\(CD\\)射向镜面\\(OB\\)时，经过两次反射后，光线\\(EF\\)沿平行于\\(CD\\)的方向射出，若\\(\\angle 1 = 50^{\\circ}\\)，则\\(\\angle 2\\)的度数是( ).<img class=\"question-figure\" src=\"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png\" style=\"width:128.6px!important;max-width:100%;height:auto\" alt=\"\" title=\"点击查看原图\"><br>A. 20∘<br>B. 30∘<br>C. 40∘<br>D. 50∘</div>","answer_html":"C","ways_html":"根据光的反射定律，入射角等于反射角。在△OBE中，∠OBE = 90° - ∠1 = 40°，因此∠OEB = 40°。由于EF∥CD，根据平行线的性质，∠2 = ∠OEB = 40°。","explain_html":null,"difficulty":2,"score":null,"year":null,"parse_status":"PARSED","qa_status":"QUARANTINED","retry_count":0,"final_score":0.938,"error_message":"QA failed: COHERENCE,ANSWER","published_question_id":null,"content_sha256":"56e22cba7f30c7dacab3548bd21d353fa56fd0f85c5a0cf8eff8a400373114ec","created_at":"2026-09-25T03:34:21","updated_at":"2026-09-25T03:43:15","answer_missing":false,"formula_fallback":false,"_number":"3","_section":"generic","_section_label":""},"assets":[{"id":4731,"asset_uuid":"9b2f086714cd40ddb09c0d63d805f6b4","job_id":3,"import_question_id":21728,"asset_type":"embedded_image","source_file":"2026江苏七年级期末数学试卷+答案55.pdf","source_page":1,"source_bbox":"[30.22, 403.12, 126.68, 453.13]","sha256":"bbf2d2ef8baaa596f1f7547ec839a192e3f5a5552b904218067942285973c451","local_path":"/www/wwwroot/tikupdfpng.mtwlkj.net_5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png","asset_key":"math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png","public_url":"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png","width":520,"height":264,"qa_status":"PENDING","created_at":"2026-09-25T03:34:22","safe_public_url":"http://tikupdfpng.mtwlkj.net:5129/qbank/math/2026/09/2b06312b-7e3f-494e-ae3e-21d10207fcf7/4ce7a4e2-d972-4518-bc5a-105403acce74/bbf2d2ef8baa.png"}],"knowledge":[],"audits":[{"id":430109,"import_question_id":21728,"audit_type":"STRUCTURE","auditor_name":"structure-rule","status":"PASS","score":0.9,"input_snapshot":"自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜 AO\\perp BO ，当光线 CD 射向镜面 OB 时，经过两次反射后，光线 EF 沿平行于 CD 的方向射出，若 \\angle 1 = 50^{\\circ} ，则 \\angle 2 的度数是( ). [图] A. 20∘ B. 30∘ C. 40∘ D. 50∘","result_json":"{\"ok\": true, \"rule\": \"clean-override\", \"issues\": [], \"confidence\": 0.9}","created_at":"2026-09-25T03:37:41"},{"id":430110,"import_question_id":21728,"audit_type":"FORMULA","auditor_name":"formula-auditor","status":"PASS","score":1.0,"input_snapshot":"AO\\perp BO; CD; OB; EF; CD","result_json":"{\"risky\": 1, \"issues\": [], \"checked\": 7, \"invalid\": 0, \"visual_check\": \"delegated_to_question_vision\", \"invalid_details\": [], \"visually_verified\": 0}","created_at":"2026-09-25T03:37:41"},{"id":430111,"import_question_id":21728,"audit_type":"KNOWLEDGE","auditor_name":"knowledge-auditor","status":"WARN","score":0.0,"input_snapshot":"自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜 AO\\perp BO ，当光线 CD 射向镜面 OB 时，经过两次反射后，光线 EF 沿平行于 CD 的方向射出，若 \\angle 1 = 50^{\\circ} ，则 \\angle 2 的度数是( ). [图] A. 20∘ B. 30∘ C. 40∘ D. 50∘","result_json":"{\"picks\": [], \"tree_code\": \"KT_SENIOR_MATH_STANDARD\", \"candidates\": 0, \"classifier_version\": null}","created_at":"2026-09-25T03:37:41"},{"id":430118,"import_question_id":21728,"audit_type":"VISION","auditor_name":"vision-auditor","status":"PASS","score":0.95,"input_snapshot":"题干：\n自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜\\(AO\\perp BO\\)，当光线\\(CD\\)射向镜面\\(OB\\)时，经过两次反射后，光线\\(EF\\)沿平行于\\(CD\\)的方向射出，若\\(\\angle 1 = 50^{\\circ}\\)，则\\(\\angle 2\\)的度数是( ). A. 20∘ B. 30∘ C. 40∘ D. 50∘\n答案：\n\n解析：\n","result_json":"{\"ok\": true, \"hard\": false, \"issues\": [], \"confidence\": 0.95, \"suggestions\": [\"解析部分可以更详细地说明角度推导过程，例如利用反射定律和垂直关系逐步计算∠2。\"]}","created_at":"2026-09-25T03:38:16"},{"id":430127,"import_question_id":21728,"audit_type":"SOLVER","auditor_name":"blind-solver","status":"PASS","score":1.0,"input_snapshot":"自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜 AO\\perp BO ，当光线 CD 射向镜面 OB 时，经过两次反射后，光线 EF 沿平行于 CD 的方向射出，若 \\angle 1 = 50^{\\circ} ，则 \\angle 2 的度数是( ). [图] A. 20∘ B. 30∘ C. 40∘ D. 50∘","result_json":"{\"basis\": \"根据光的反射定律，入射角等于反射角。在△OBE中，∠OBE = 90° - ∠1 = 40°，因此∠OEB = 40°。由于EF∥CD，根据平行线的性质，∠2 = ∠OEB = 40°。\", \"answer\": \"C\", \"confidence\": 1.0, \"handout_chars\": 0}","created_at":"2026-09-25T03:38:30"},{"id":430128,"import_question_id":21728,"audit_type":"CRITIC","auditor_name":"critic","status":"PASS","score":1.0,"input_snapshot":"来源答案: || 盲解:C","result_json":"{\"ok\": true, \"issues\": [], \"merged\": true, \"confidence\": 1.0}","created_at":"2026-09-25T03:38:30"},{"id":430129,"import_question_id":21728,"audit_type":"SYMBOLIC","auditor_name":"symbolic-auditor","status":"PASS","score":1.0,"input_snapshot":"答案:C || 盲解:C","result_json":"{\"checks\": [], \"detail\": {\"reason\": \"盲解与来源答案一致\"}, \"status\": \"PASS\", \"applicable\": true}","created_at":"2026-09-25T03:38:30"},{"id":430150,"import_question_id":21728,"audit_type":"COHERENCE","auditor_name":"coherence-auditor","status":"FAIL","score":0.9,"input_snapshot":"答案:C || 解析:根据光的反射定律，入射角等于反射角。在△OBE中，∠OBE = 90° - ∠1 = 40°，因此∠OEB = 40°。由于EF∥CD，根据平行线的性质，∠2 = ∠OEB = 40°。","result_json":"{\"ok\": false, \"which\": [\"solution\"], \"issues\": [\"解析中错误地计算了∠OEB的度数，导致最终答案错误。\", \"∠OBE = 90° - ∠1 = 40°: 在直角三角形OBE中，∠BOE=90°，因此∠OBE + ∠OEB = 90°。已知∠1是入射角，即∠1 = ∠OEB（反射角），所以∠OBE = 90° - ∠1 = 40°是正确的。\", \"∠OEB = 40°: 根据反射定律，入射角等于反射角，所以∠OEB = ∠1 = 50°，而不是40°。\", \"∠2 = ∠OEB = 40°: 由于EF∥CD，根据平行线的性质，∠2 = ∠OEB。但∠OEB应为50°，所以∠2 = 50°，而不是40°。\"], \"confidence\": 0.9, \"equation_checks\": [{\"valid\": false, \"reason\": \"在直角三角形OBE中，∠BOE=90°，因此∠OBE + ∠OEB = 90°。已知∠1是入射角，即∠1 = ∠OEB（反射角），所以∠OBE = 90° - ∠1 = 40°是正确的。\", \"equation\": \"∠OBE = 90° - ∠1 = 40°\"}, {\"valid\": false, \"reason\": \"根据反射定律，入射角等于反射角，所以∠OEB = ∠1 = 50°，而不是40°。\", \"equation\": \"∠OEB = 40°\"}, {\"valid\": false, \"reason\": \"由于EF∥CD，根据平行线的性质，∠2 = ∠OEB。但∠OEB应为50°，所以∠2 = 50°，而不是40°。\", \"equation\": \"∠2 = ∠OEB = 40°\"}]}","created_at":"2026-09-25T03:41:28"},{"id":430151,"import_question_id":21728,"audit_type":"QUALITY_GATE","auditor_name":"quality-gate","status":"FAIL","score":0.938,"input_snapshot":"","result_json":"{\"warnings\": [], \"graded_gate\": true, \"hard_failed\": [\"COHERENCE\"]}","created_at":"2026-09-25T03:41:28"},{"id":430173,"import_question_id":21728,"audit_type":"SOLVER","auditor_name":"blind-solver","status":"WARN","score":0.4,"input_snapshot":"自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜 AO\\perp BO ，当光线 CD 射向镜面 OB 时，经过两次反射后，光线 EF 沿平行于 CD 的方向射出，若 \\angle 1 = 50^{\\circ} ，则 \\angle 2 的度数是( ). [图] A. 20∘ B. 30∘ C. 40∘ D. 50∘","result_json":"{\"note\": \"盲解+评判合并调用未返回\"}","created_at":"2026-09-25T03:43:15"},{"id":430174,"import_question_id":21728,"audit_type":"CRITIC","auditor_name":"critic","status":"WARN","score":0.5,"input_snapshot":"自行车尾灯内部的角反射器是由许多垂直的平面镜组成，其工作原理如图2所示，平面镜 AO\\perp BO ，当光线 CD 射向镜面 OB 时，经过两次反射后，光线 EF 沿平行于 CD 的方向射出，若 \\angle 1 = 50^{\\circ} ，则 \\angle 2 的度数是( ). [图] A. 20∘ B. 30∘ C. 40∘ D. 50∘","result_json":"{\"note\": \"Critic 未返回结果\"}","created_at":"2026-09-25T03:43:15"},{"id":430175,"import_question_id":21728,"audit_type":"AUTO_REPAIR_ATTEMPT","auditor_name":"answer-repair","status":"FAIL","score":0.5,"input_snapshot":null,"result_json":"{\"critic\": false, \"symbolic\": false, \"coherence\": false, \"consensus\": \"two_solvers+symbolic+critic+coherence\", \"confidence\": 1.0, \"verifier_base\": \"http://127.0.0.1:8091/v1\", \"verifier_confidence\": 0.0, \"critic_explicit_pass\": false, \"symbolic_literal_warn\": false, \"symbolic_explicit_pass\": false, \"coherence_explicit_pass\": false}","created_at":"2026-09-25T03:43:15"}]}