题目 #20931
- UUID
29d50a06-0846-4932-a8c9-019bbce5e434- 来源
- A中考/2026江苏中考期末数学试卷+答案810.pdf 第 3-4 页，bbox
[31.56, 699.45, 557.04, 363.54] - 题型 / 学科
- single_choice / math / JUNIOR
- 知识树
KT_JUNIOR_MATH_STANDARD- 难度
- 难度 2 / 5 简单 · 单一知识点
- QA 状态
- 存疑 / 待修复 重试 0 次，得分 0.950
- 最终题 ID
- -
- 错误
- QA failed: COHERENCE,ANSWER
最终题干渲染（f_body 预览）
【小试2】 如图,已知 AB 是 ⊙O 的弦,直径 CD ⊥AB 交 AB 于点 H,连接OA, 若∠A = 45°, AB = 3, 则OA = ( ) 2026-06-22
A. \(3_{3}_{2}\)
B.
C. 3√2
D. 3√2
| (A)3 3 (B) 2 (C)3√2 (D)3√2 2 | Col1 |
|---|
A. \(3_{3}_{2}\)
B.
C. 3√2
D. 3√2
答案 / 解析
答案（f_answer）
D
解析（f_ways）
因为直径 CD ⊥AB, AB = 3, ∴AH = 1 3\(3 _{2}\)AB = _{2}, 在Rt △AHO中，∠A = 45°，所以AH = OH = _{2}, ∴AO = DO =\(\sqrt{AH^{2}}\)+\(OH^{2}\)= √（_{2}）^{2} + （\(3 _{2}\)）^{2}=3 3\(\sqrt{2_{2}}\)，故选D.
原图与资产（2）
| 预览 | 类型 | 页 | source bbox | hash | URL | 本地路径 |
|---|---|---|---|---|---|---|
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embedded_image | 4 | [31.5, 121.82, 173.2, 261.62] |
e4635ecba5502196… |
/www/wwwroot/tikupdfpng.mtwlkj.net_5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/29d50a06-0846-4932-a8c9-019bbce5e434/e4635ecba550.png |
|
|
embedded_image | 4 | [30.0, 385.25, 71.19, 421.2] |
72af6c10eda987ae… |
/www/wwwroot/tikupdfpng.mtwlkj.net_5129/qbank/math/2026/09/16de2e24-a616-456b-83c5-3364ab6bd928/29d50a06-0846-4932-a8c9-019bbce5e434/72af6c10eda9.png |
审计记录
| 阶段 | 审计器 | 结果 | 得分 | 依据（简短） |
|---|---|---|---|---|
| STRUCTURE | structure-rule | PASS | 0.900 | |
| FORMULA | formula-auditor | PASS | 1.000 | |
| KNOWLEDGE | knowledge-auditor | WARN | - | |
| VISION | vision-auditor | PASS | 0.950 | |
| SOLVER | blind-solver | PASS | 1.000 | |
| CRITIC | critic | PASS | 1.000 | |
| SYMBOLIC | symbolic-auditor | PASS | 1.000 | |
| COHERENCE | coherence-auditor | FAIL | 0.950 | |
| QUALITY_GATE | quality-gate | FAIL | 0.950 | |
| SOLVER | blind-solver | PASS | 1.000 | |
| CRITIC | critic | PASS | 1.000 | |
| COHERENCE | coherence-auditor | FAIL | 0.900 | |
| SYMBOLIC | symbolic-auditor | PASS | 1.000 | |
| AUTO_REPAIR_ATTEMPT | answer-repair | FAIL | 1.000 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 | |
| RETRO_REPAIR | retro-deterministic | FAIL | 0.300 |
知识点（0）
无
事件
| 时间 | 阶段 | 级别 | 消息 |
|---|---|---|---|
| 2026-09-24 21:27:49 | QA_TERMINAL | WARN | question terminal status=QUARANTINED: /data/qbank/quarantine/16de2e24-a616-456b-83c5-3364ab6bd928/question_29d50a06-0846-4932-a8c9-019bbce5e434.json |
| 2026-09-24 21:27:49 | QA | WARN | QA: FAIL (score=0.950) |
| 2026-09-24 21:21:03 | FORMULA | WARN | 公式转换未确认，保留原文本: solution |
| 2026-09-24 21:17:03 | FORMULA | WARN | 公式转换未确认，保留原文本: option_D |
| 2026-09-24 21:15:14 | FORMULA | WARN | 公式转换未确认，保留原文本: option_C |
| 2026-09-24 21:13:46 | FORMULA | WARN | 公式转换未确认，保留原文本: option_A |
| 2026-09-24 21:10:37 | FORMULA | WARN | 公式转换未确认，保留原文本: stem |