The selection principles in semantics and the negative function in discourse of the sentence pattern with "Ningke" are analyzed in the paper.

本文主要从语篇的角度分析“宁可”句式的语义选择原则及其否定功能。

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Though this the ory isn't practical, but it discussed about the negative function of private ownership system and put forward some progressive ideas and valuable spirit of practice.

尽管这一理论在实践上是行不通的，但它认真讨论了私有制的负面作用，提出了一些较为进步的思想和有价值的实践精神。

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So, for example, if we were looking at the actual wave function, we would say that these parts here have a positive amplitude, and in here we have a negative amplitude.

我们看，一个波函数，我们说，它这部分幅值，为正，这部分幅值为负，当我们看。

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It has been suggested in previous studies that there could be a link between impaired lung function and a negative effect on the thinking processes, but it is not clear what the mechanism for that might be.

BBC: NEWS | Health | Smoking 'is bad for your brain'

The researchers suggest a "small but significant" negative effect of 4% linked to the combined effects of smoking and impaired lung function - itself linked to smoking.

BBC: NEWS | Health | Smoking 'is bad for your brain'