{"ok":true,"question":{"id":21531,"question_uuid":"a1335792-6d51-4066-89c2-5981c2d3cd7b","job_id":3,"source_file":"人教版/七下/2026江苏七年级期末数学试卷+答案440.pdf","source_page_start":1,"source_page_end":1,"source_bbox":"[303.07, 402.23, 452.42, 422.26]","subject_code":"math","grade_level":"JUNIOR","tree_code":"KT_JUNIOR_MATH_STANDARD","question_type":"fill_blank","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"x +1 = 3,则x = _______\", \"type\": \"text\"}, {\"type\": \"answer\", \"blocks\": [{\"text\": \"x = 2\", \"type\": \"text\"}]}, {\"type\": \"solution\", \"blocks\": [{\"text\": \"由 x + 1 = 3，得 x = 3 - 1 = 2。\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [303.07, 402.23, 452.42, 422.26], \"file\": \"人教版/七下/2026江苏七年级期末数学试卷+答案440.pdf\", \"regions\": [{\"bbox\": [303.07, 402.23, 452.42, 422.26], \"page\": 1}], \"section\": \"memory\", \"page_end\": 1, \"page_start\": 1, \"section_label\": \"巩固记忆学习        请认真填写，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\": \"13\", \"subject_code\": \"math\", \"question_type\": \"fill_blank\", \"content_sha256\": \"1e78221143971c4feda02aff7adb7a0b0aeea54326b22d7b84416d46b901eed4\"}","body_html":"<div>x +1 = 3,则x = _______</div>","answer_html":"x = 2","ways_html":"由 x + 1 = 3，得 x = 3 - 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