1.1 Characteristics of human activities .Since ancient times,human economic,political,military, religious and all other social activities have the following three characteristics: 目的 性 objective 人类活 动的特 点 Informative 知识 依存 dependency 性 性 •Since ancient times, human economic, political, military, religious and all other social activities have the following three characteristics: 1.1 Characteristics of human activities objective Informative dependency