Chapter I is a review that analyzes the present situations of the internal and externalstudy on Information Brokering.
论文第一章为文献述评，主要分析了国内外信息经纪业研究的现状与不足。
2
At the same time, Chinese literary theories were marching from externalstudy to inner one, devoting great endeavor on studying the problems of literature it self's theory and laws.
中国文论则由外部研究走向内部研究， 大力探讨文论自身的问题、规律等等。
3
This paper discusses the reinforced etched mechanism from the Angle of chemistry and electrochemistry, and introduces some externalstudy condition of reinforced etched respect in bridge floor.