This paper tries to reveal the phonetic style of homonym repetition in his three Yuefu poems,points out the style of language and how the poet expresses his deep emotions through describing objects so that reade.

This evolution has resulted in a sharp and consistent definition of competitive advantage, which partially solved the issue of tautology and enhan.

There are three approaches to settle the dispute on whether the principle of natural selection is a tautology: taking a skeptical attitude to the scientific status of the principle of natural selection;redefining the fitness and selection;giving up the received view of the structure scientific theory.

The article makes a thorough analysis of tautology through the investigation of a considerable amount of material of the same language and reaches the conclusion that it is an important figure of speech in linguistic expression.

On San Yan s homomorphous complex tone words from the change of it s sentiment meaning;