{"ok":true,"question":{"id":21344,"question_uuid":"b0a30485-25f4-41c6-b38c-df0bd5fa991d","job_id":4,"source_file":"A中考/2026江苏中考期末数学试卷+答案90.pdf","source_page_start":4,"source_page_end":5,"source_bbox":"[30.0, 716.86, 565.3, 39.21]","subject_code":"math","grade_level":"JUNIOR","tree_code":"KT_JUNIOR_MATH_STANDARD","question_type":"subjective","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"先化简(_{x−1}−x −1) ÷ x−1,再选择一个合适的数作为 x 的值代入求值. 3 x2−4x+4 学案编号:A10910090028\", \"type\": \"text\"}], \"source\": {\"bbox\": [30.0, 716.86, 565.3, 39.21], \"file\": \"A中考/2026江苏中考期末数学试卷+答案90.pdf\", \"regions\": [{\"bbox\": [30.0, 716.86, 420.54, 789.81], \"page\": 4}, {\"bbox\": [245.88, 21.64, 565.3, 39.21], \"page\": 5}], \"section\": \"match\", \"page_end\": 5, \"page_start\": 4, \"section_label\": \"智适化匹配练习 ★\", \"answer_regions\": [], \"answer_original\": \"\", \"solution_original\": \"\"}, \"version\": 1, \"grade_level\": \"JUNIOR\", \"number_label\": \"6\", \"subject_code\": \"math\", 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\"ANSWER\"]}","created_at":"2026-09-25T00:41:42"},{"id":421267,"import_question_id":21344,"audit_type":"SOLVER","auditor_name":"blind-solver","status":"PASS","score":1.0,"input_snapshot":"先化简(_{x−1}−x −1) ÷ x−1,再选择一个合适的数作为 x 的值代入求值. 3 x2−4x+4 学案编号:A10910090028","result_json":"{\"basis\": \"原式=(\\\\frac{3}{x-1}-\\\\frac{(x+1)(x-1)}{x-1})\\\\div\\\\frac{(x-2)^2}{x-1}=(\\\\frac{3-(x^2-1)}{x-1})\\\\div\\\\frac{(x-2)^2}{x-1}=\\\\frac{4-x^2}{x-1}\\\\cdot\\\\frac{x-1}{(x-2)^2}=\\\\frac{(2-x)(2+x)}{(x-2)^2}=\\\\frac{-(x-2)(x+2)}{(x-2)^2}=\\\\frac{-(x+2)}{x-2}。当x=0时，原式=\\\\frac{-2}{-2}=1。\", \"answer\": \"化简结果：-\\\\frac{x+2}{x-2}；取x=0，值为1\", \"confidence\": 1.0, \"handout_chars\": 0}","created_at":"2026-09-25T00:42:46"},{"id":421268,"import_question_id":21344,"audit_type":"CRITIC","auditor_name":"critic","status":"PASS","score":1.0,"input_snapshot":"来源答案:化简结果：-\\(\\dfrac{x+2}{x-2}\\)；取x=0，值为1 || 盲解:化简结果：-\\frac{x+2}{x-2}；取x=0，值为1","result_json":"{\"ok\": true, \"issues\": [], \"merged\": true, 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