{
  "topic": "example-topic",
  "type": "single_choice",
  "schema_version": "1.0.0",
  "generated": "2026-01-01T00:00:00Z",
  "questions": [
    {
      "id": "dom-sub-top-sc-001",
      "type": "single_choice",
      "difficulty": 3,
      "tags": ["example", "template"],
      "question": "以下哪项是单选题的正确示例？",
      "options": {
        "A": "这是一个正确选项",
        "B": "这是一个干扰选项",
        "C": "这也是一个干扰选项",
        "D": "这还是一个干扰选项"
      },
      "answer": "A",
      "explanation": "A 是正确答案，因为它是预设的正确选项。B、C、D 均为干扰项，用于测试考生的辨别能力。",
      "source": null,
      "related": []
    }
  ]
}