Historical Investigation into the NATO’s Eastward Expansion and European Security;

After the Second World War, the European security situation changed greatly when the Yalta system which the United States and the Soviet Union dominated founded.

With American getting entirely involved to European affairs and the start of process of integration after the World War II, European security has already gone beyond the extent of sovereign state, and has become a kind of problem that mainly exerts an influence on the regio.

Some Security Problems of Identity Authentication on Networks and the Solutions;

A discussion on security problem of information system in the age of electrical business;

Brief mtroduction to the security problems and solutions of the electronic tax system;

Analysis the safety problem and improvement measures of condensate oilcan;

The safety problems and countermeasures in midwife s working in primary-level hospitals;

This article researched and probed the strategies of the safety management of the laboratories and the methods of accident disposal from the point view of laboratory safety problems and hid.