Presupposition is widely studied in the field of linguistics nowadays while it was firstly put forward in philosophy.Early study ex amined it from semantic approach,which treated it as the relation between two proposi...Presupposition is widely studied in the field of linguistics nowadays while it was firstly put forward in philosophy.Early study ex amined it from semantic approach,which treated it as the relation between two propositions.In 1970s,it was found presupposition was also a pragmatic concept,which held that presupposition varied with context.The author holds that semantic approach can't solve all the com plex problems while it's the basic part about the issue.Only through the pragmatic approach can we study it dynamically.展开更多
With the continuous development of the times, the actual demand for chemical products in the current society only increases, so we should pay attention to the use quality and safety quality of chemical products. Consi...With the continuous development of the times, the actual demand for chemical products in the current society only increases, so we should pay attention to the use quality and safety quality of chemical products. Considering the potential safety hazards of chemical products, it is necessary to improve the production process of chemical products, improve the chemical production technology, gradually improve the safety management system of chemical production and manufacturing, and effectively integrate the energy-saving and consumption reduction technology into the chemical production process, so as to give full play to the role of energy-saving and consumption reduction concept.展开更多
文摘Presupposition is widely studied in the field of linguistics nowadays while it was firstly put forward in philosophy.Early study ex amined it from semantic approach,which treated it as the relation between two propositions.In 1970s,it was found presupposition was also a pragmatic concept,which held that presupposition varied with context.The author holds that semantic approach can't solve all the com plex problems while it's the basic part about the issue.Only through the pragmatic approach can we study it dynamically.
文摘With the continuous development of the times, the actual demand for chemical products in the current society only increases, so we should pay attention to the use quality and safety quality of chemical products. Considering the potential safety hazards of chemical products, it is necessary to improve the production process of chemical products, improve the chemical production technology, gradually improve the safety management system of chemical production and manufacturing, and effectively integrate the energy-saving and consumption reduction technology into the chemical production process, so as to give full play to the role of energy-saving and consumption reduction concept.
