Applying the single-equation econometric model,the author models the relationship between the industry including the primary,the secondary and the tertiary and the level of employment.

This paper casts an analysis to the evolution of employment structure in Beijing and studies by curvilinear regression the impacts arising from the employment structural change on the employment level.

According to the regression results and comparison with the situations of foreign countries,it also put forward suggestions to improve the employment level of China.

Relations of academic achievement to learning self-efficacy and learning strategy for middle school students;

Family Background and Academic Achievement:A Study on the Social Stratum Differentiation in Compulsory Education;

The Investigation of the Development of the Middle School Students Academic Self and the Relationships on the Academic Self and the Personality, Academic Achievement;

Study on Mental Health and School achievements of Medical College Students from Different Family;

Investigation to the developing level of non-intellectual factors of vocational school studnets shows that: the main non-intellectual factors have big influence on students school achievements are achievement motivation,learning enthusiasm,ambition and cognitive interests.

The high or low of College students school achievement have important relationship with their quality of will.