After reviewing the former studies correlated with this research, this essay basesitself on the practice of teaching Chinese as a foreign language and tries to set up thecomparative category for Chinese by comparing the comparative sentences of Chineseand English under the direction of cognitive linguistic theories.

Then the paper makes mode comparison and empirical comparison, and finds that their forecast outcomes differ with their modes of modeling.

In the present study, the writers lay emphasis on the analysis of the scope of medical civil judicature, and discuss its definition and contents so as to make a basic research for the establishment of the medical civil ju.

There are differences in connotation and research scope between the two, and they also have natural and intrinsic relations:research of the former necessarily extends to the later, and research of later necessarily trace to the former.

Methods and shift of water right category study;

Benefit, the Crucial and Basic Category of Historical Materialism Theoretical System;

Dull for Categories with only Local Units;

System science has its own laws,principles and categories.

On the base of categories Fuz,FR(Y) and FuzFuz having “middle object and weak SC”,concept of a middle object in an abstract category is introduced by the use of poset and partial order relation of morphisms and a Cartesian Closed category with middle object is called a weak topos.