Many uncertainties cause unavoidable risk in engineering planning and decision . People can not expect that medical institutions and medical workers do not make any mistake because there are many uncertainties during medical decision-making .

客观存在的诸多不确定性因素使得工程 不可避免 地 存在着风险。人们不能期望医疗机构和医务人员在医疗活动中不 犯错，因为临床决策存在诸多不确定性。

But because of the setting-up of the corpus now it is need to check-up artificially the unavoidable carelessness and mistake will cause inconsistent to the same word segmentation results under the same language environment .

然而由于现阶段语料库的建立，需要人工来校验， 不可避免 的 会有一定的疏忽和 错误，导致了对同一字段在相同的语言环境下的切分结果不一致。