{"ok":true,"question":{"id":21211,"question_uuid":"4266db37-837f-49f3-a78d-83ef92912390","job_id":4,"source_file":"A中考/2026江苏中考期末数学试卷+答案85.pdf","source_page_start":2,"source_page_end":2,"source_bbox":"[303.0, 317.74, 458.3, 333.87]","subject_code":"math","grade_level":"JUNIOR","tree_code":"KT_JUNIOR_MATH_STANDARD","question_type":"fill_blank","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"1 -\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"x^{2}\"}, {\"text\": \"=\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\text{_______________.}\"}, {\"type\": \"answer\", \"blocks\": [{\"text\": \"(1+x)(1-x)\", \"type\": \"text\"}]}, {\"type\": \"solution\", \"blocks\": [{\"text\": \"依据平方差公式\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"a^{2}\"}, {\"text\": \"-\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"b^{2}\"}, {\"text\": \"= (a+b)(a-b)。将 1 -\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"x^{2}\"}, {\"text\": \"视为\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"1^2\"}, {\"text\": \"-\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"x^{2}\"}, {\"text\": \"，其中 a=1, b=x，因此分解为 (1+x)(1-x)。\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [303.0, 317.74, 458.3, 333.87], \"file\": \"A中考/2026江苏中考期末数学试卷+答案85.pdf\", \"regions\": [{\"bbox\": [303.0, 317.74, 458.3, 333.87], \"page\": 2}], \"section\": \"memory\", \"page_end\": 2, \"page_start\": 2, \"section_label\": \"巩固记忆学习 不会的地方，及时查看上方核心知识点。\", \"answer_regions\": [], \"answer_original\": \"\", \"solution_original\": \"\"}, \"version\": 1, \"grade_level\": \"JUNIOR\", \"number_label\": \"36\", \"subject_code\": \"math\", \"question_type\": \"fill_blank\", \"content_sha256\": \"437ad49b27a89a969f595a977980f963cb047ce97ab03f3d7b86277de01d14f0\"}","body_html":"<div>1 -\\(x^{2}\\)=\\(\\text{_______________.}\\)</div>","answer_html":"(1+x)(1-x)","ways_html":"依据平方差公式\\(a^{2}\\)-\\(b^{2}\\)= (a+b)(a-b)。将 1 -\\(x^{2}\\)视为\\(1^2\\)-\\(x^{2}\\)，其中 a=1, b=x，因此分解为 (1+x)(1-x)。","explain_html":null,"difficulty":2,"score":null,"year":null,"parse_status":"PARSED","qa_status":"QUARANTINED","retry_count":0,"final_score":0.775,"error_message":"QA failed: VISION","published_question_id":null,"content_sha256":"437ad49b27a89a969f595a977980f963cb047ce97ab03f3d7b86277de01d14f0","created_at":"2026-09-24T23:22:50","updated_at":"2026-09-24T23:47:33","answer_missing":false,"formula_fallback":false,"_number":"36","_section":"memory","_section_label":"巩固记忆学习 不会的地方，及时查看上方核心知识点。"},"assets":[],"knowledge":[],"audits":[{"id":417903,"import_question_id":21211,"audit_type":"STRUCTURE","auditor_name":"structure-rule","status":"PASS","score":0.9,"input_snapshot":"1 - x^{2} = \\text{_______________.}","result_json":"{\"ok\": true, \"rule\": \"clean-override\", \"issues\": [], \"confidence\": 0.9}","created_at":"2026-09-24T23:45:59"},{"id":417904,"import_question_id":21211,"audit_type":"FORMULA","auditor_name":"formula-auditor","status":"PASS","score":1.0,"input_snapshot":"x^{2}; 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