{"ok":true,"question":{"id":21882,"question_uuid":"08b5c592-3a10-4e0e-a217-ad05b7249ada","job_id":3,"source_file":"人教版/七下/2026江苏七年级期末数学试卷+答案615.pdf","source_page_start":1,"source_page_end":1,"source_bbox":"[30.22, 670.04, 318.18, 751.8]","subject_code":"math","grade_level":"JUNIOR","tree_code":"KT_JUNIOR_MATH_STANDARD","question_type":"single_choice","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"在平面直角坐标系中，点\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"A(-1, a^{2}+3)\"}, {\"text\": \"在第( )象限．\", \"type\": \"text\"}, {\"type\": \"option\", \"label\": \"A\", \"blocks\": [{\"text\": \"一\", \"type\": \"text\"}], \"source_bbox\": [47.57, 699.91, 59.14, 711.48], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"B\", \"blocks\": [{\"text\": \"二\", \"type\": \"text\"}], \"source_bbox\": [47.57, 713.69, 59.14, 725.26], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"C\", \"blocks\": [{\"text\": \"三\", \"type\": \"text\"}], \"source_bbox\": [47.57, 726.96, 59.14, 738.53], \"source_page\": 1}, {\"type\": \"option\", \"label\": \"D\", \"blocks\": [{\"text\": \"四\", \"type\": \"text\"}], \"source_bbox\": [47.57, 740.23, 59.14, 751.8], \"source_page\": 1}, {\"type\": \"answer\", \"blocks\": [{\"text\": \"B\", \"type\": \"text\"}]}, {\"type\": \"solution\", \"blocks\": [{\"text\": \"由题意\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"a^{2}\\\\geq0\"}, {\"text\": \"，\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\therefore y_{A}= a^{2}+ 3 > 0\"}, {\"text\": \",\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\because x_{A}< 0\"}, {\"text\": \",\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"y_{A}> 0\"}, {\"text\": \",\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\therefore\"}, {\"text\": \"点A在第二象限．故选：B．\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [30.22, 670.04, 318.18, 751.8], \"file\": \"人教版/七下/2026江苏七年级期末数学试卷+答案615.pdf\", \"regions\": [{\"bbox\": [30.22, 670.04, 318.18, 751.8], \"page\": 1}], \"section\": \"generic\", \"page_end\": 1, \"page_start\": 1, \"section_label\": \"\", \"answer_regions\": [{\"bbox\": [43.99800109863281, 365.54351806640625, 465.9285278320313, 392.7369689941406], \"page\": 4}], \"answer_original\": \"B\", \"solution_original\": \"由题意a^{2}≥0，∴y_{A}= a^{2}+ 3 > 0, ∵x_{A}< 0, y_{A}> 0, ∴点A在第二象限．故选：B．\"}, \"version\": 1, \"grade_level\": \"JUNIOR\", \"number_label\": \"4\", \"subject_code\": \"math\", \"question_type\": \"single_choice\", \"content_sha256\": \"f63123c66f626f77e2ccf90dd3410396d1545cb3c2f7b1f5250621986bbd049b\"}","body_html":"<div>在平面直角坐标系中，点\\(A(-1, a^{2}+3)\\)在第( )象限．<br>A. 一<br>B. 二<br>C. 三<br>D. 四</div>","answer_html":"B","ways_html":"由题意\\(a^{2}\\geq0\\)，\\(\\therefore y_{A}= a^{2}+ 3 &gt; 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