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    "scope": "Lévy嵌套高斯节点；折线只连接观测节点。平方/四次Taylor账本按实际增量计算。GBM闭式解与Euler使用同一噪声；单路径误差不代表强误差期望或收敛阶。光滑对照的timeCorrection仅是错误套用布朗修正的对照，不能称为其二次变差。"
  }
}
