用于正反问句末尾的“没”、“没有”与语气词“么”也有一定的关系。

The mood word "Me" also has some relation with the negative "Mei" and "Meiyou".

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轴向旋涡流动是离心叶轮叶片之间一种特殊的相对流动，其流动规律是离心叶轮正反问题研究的重要基础。

Relative eddy is a special relative flow within centrifugal blade passage, which is of prime importance in flow study of pumps.

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在语法层面，本文采用C4.5决策树算法将问题分类为是非问句、正反问句、特选问句和特指问句四种类型；

In syntax level, we classify the question into four categories by C4.5 algorithm, such as yes-or-no interrogative, specially related interrogative, and so on.

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