Images of Buddha carved out of intact stones appeared in North Wei, these images were broad in scale with unitarystyle, obviously they were influenced by Indian Images of Buddha, but contained aesthetical taste of Pre-Qin.

A Strategic Cogitation on China's Petroleum Security;

Analysis of tax policy problem based on the petroleum security in our country;

Analysis of existing problems of petroleum security in China and their countermeasures;

International petroleum competition and China's petroleum safety;

Because there are contradictions in petroleum safety conception and differences in petroleum diplomatic strategy between China and America,the inharmonious relationship between two countries appeared in the field of international petroleum safety.

By qualitative and quantitative analysis,this paper analyzes theoretically the function mechanism and the evaluation indexes system about the contribution of the automobile energy-saving certification to the petroleum safety,then puts forward the mathematical model which counts the contribution rate of the automobile energy-saving certification to the petroleum safety.

The measure and mechanism of the government to maintain oil security in USA;

Evaluations and recommendations for our current oil security;

Trade Strategy and Policy for China's Oil Security;

Exploration of China s oil safety construction during RMB exchange rate adjustment;

In view of the serious situation the oil is facing, guided by the outlook of science development, and combined with the oil safety insurance and strategy of energy resources, probed into importance of implementation .

The article analyzes the grim situation facing China' s oil safety from the following aspects: global oil resources distribution, international relations and geopolitics.