Probe into the Tropes of the Scepticism of Ancient Greece;

This paper divides the discussion into three parts: class discussion, group discussion, debate discussion, trying to analyze the implementation of discussion method in English class.

Deduction of the theoretical formula of the bending center and its application;

Experimental study and theoretical formula of the sprinkler range;

The theoretical formulas were proposed.

This paper presents the research on the principles of the dual-gradient drilling technology by theory formula and simulation model.

This paper puts forword some principles for simplifying wu zhendong s theory formula,analyses variance law of all terms exponential functions in wu zhendong formula, establishes 4 simplifying theorems, studies some groups of simplified wu zhendong formulae under some particular conditions with strict mathematical analysis and proofs.

It is believed that the theoretical mode of Chinese medicine arising from the China s ancient science and culture faces with great difficulty,and must be reconstructed in a modern way.

Based on the theories of regional development,of regional tourism development,of tourism development in mountainous areas,the authors of this article make a primary investigation on the theoretical mode for tourism development in west mountainous and propose some constructive thoughts about how to put the mode into practice by taking the tou.

To ensure the quality of education,scholars now are studying the curriculum development,a core issue,and formulate some theoretical modes for curriculum development among which two influential modes are KH Mode and Demand-oriented Mode.

The theoretic equation and numerical solution of debris flow hazard are framed.