the largest character of knowledge economic era ** the formation of manpower resource concept, where labor has agian exceeded capital to become the main source of incremental value. being enterpr**es'...
i am in class one grade six. 1、class 英[klɑ:s] 美[klæs] n. 班; 阶级; 等级; 种类; (1)he acquired a law degree by taking classes at night 他通过读夜校获得了法律学位。(2)th** poem fully expresses the author's lo...