It shows the following results: the peers of Ma care more about his status; they sympathize more with him; a majority hope to find Ma; they don t care the high reward if they can report the offender.

Based on literature review,the author uses a self-administrated questionnaire survey to urban teenager in China, investigating peers\' influence on adolescenes\' consumer socialization,analyzing the major factors in the affecting process,and identifying how peers\' impact on adolescent individuals\' abnormal consumption tendency.

The rectangle and isosceles triangle are two main kinds of arrangement of pure artificial even aged stand,according to correlative relationship between crown area and forest area of pure artificial even aged stand theoretical canopy density of stand between different row and intertree space are inferred and calculated.