, the study deals with the institutional obstacles of the citizenization of peasants, the further problems of identity alteration, part alteration and the change of lifestyle.

After the study of the effect of tea variety,leaf age and chemical component on endophytic fungi,it was found that: 1.

The microscopic structure of salix mongolia were studied,and its fiber shapes andchemical components measured.

After the study of the effect of tea variety, leaf age and chemical component on endophytic fungi, it was found that: 1.

Summary:ditailed comparing the difference between P91 and X20 in chemical composition、mechanical properties and weldability, introduction in briefly to the application of these two type of material in our plant,summing up the advantage of P91 steel.

This review sums up update studies both at home and abroad about the chemical composition, new pharmacological properties of resource plant Rhodiola l, and discusses the questions that have emerged in process of the practice and the relative strategies to solve these questions.

A study on change of contents and distribution of the rare earths in roasted tobacco plant and effects on chemical composition in roasted tobacco leaves of the rare earths was reported.