Title: Ren kou, zi yuan yu huan jing jing ji xue
Description: Ben shu dui ren kou,Zi yuan yu huan jing jing ji xue de xue ke xing zhi,Yan jiu dui xiang,Yan jiu nei rong yu yan jiu fang fa jin xing tan tao,Li tu quan mian fan ying dang dai ren kou,Zi yuan yu huan jing jing ji xue li lun yan jiu de zui xin jin zhan,Jie shao xian dai zhu liu jing ji xue you guan huan jing wen ti de yan jiu fang fa ji fen xi gong ju.
Subjects: Huan jing jing ji xue, Jiao cai, Ren kou jing ji xue, Gao deng xue xiao, Zi yuan jing ji xue