Zheng zhi jing ji xue gai lun

Description

Ben shu nei rong bao kuo:shang pin he huo bi, Zi ben he sheng yu jia zhi, Gong zi, Zi ben ji lei ji qi li shi qu shi, Zi ben de xun huan he zhou zhuan, She hui zi ben de zai sheng chan he liu tong, Ping jun li run he sheng chan jia ge deng.